COLUMN

[Entrepreneur Interview #17] Takahiro Kato (Faithful) – Part 2

  • Interview
2026.03.17

“Leaning in closely to the vision of business leaders”
Realizing a Venture Ecosystem through M&A

D-POPS GROUP has 25 group companies that we call partners (at the time of publication).

For this article, we interviewed Takahiro Kato, the Managing Director, Operating Officer, and Corporate Planning Head of D-POPS GROUP Co., Ltd., as well as Co-President of Faithful Corporation, one of D-POPS GROUP’s first member companies. (This interview was conducted in December 2025.)

This is the latter part of the interview. To read the first part, click the link below.
https://d-pops-group.co.jp/en/column/faithful-interview-first-part/

◆Keeping Busy as the Head of M&A

Sugihara:
On the other hand, you continue to serve concurrently as the head of M&A. Regarding the weight of your responsibilities, how do you balance your role as President of Faithful with your M&A duties?

Kato:
The pressure of M&A occupies over 90% of my heart and mind, but what takes up more of my time is Faithful’s business operations.

This is especially because I started as a complete amateur with M&A. Because there are so many buyers in the market these days, good deals won’t just come around if you simply sit and wait.

Sugihara:
How did you manage to start accumulating deals when you didn’t even have any connections?

Kato:
I certainly wasn’t a very pretty sight during my first year. I attended every M&A seminar I could find, but those are usually designed to attract sellers. However, I made a point of sitting in the very front row, asking question after question, and at the end, I would approach them head-on and awkwardly ask to become friends with those agencies.

I would also boldly crash social gatherings even though I didn’t know anyone, and gradually, I began to get close to some people. After a solid year of relentlessly repeating this process of relationship-building, I finally connected with our first deal: graphD.

Sugihara:
Looking back at your core business at the time, wasn’t it a little unexpected to take on a new industry with graphD for your very first M&A deal?

Kato:
I think you’re exactly right. There were concerns that we would be spreading our domains a bit too thin with that first M&A. When I first proposed the deal, President Goto wasn’t very keen on it either.

However, the situation suddenly changed in a funny way. One of our major clients, a telecommunications carrier, gave us very positive feedback, saying, “Partnering with a company strong in POP production would be a very interesting move.” That’s when President Goto said, “Maybe this is a good idea after all.”
(Note: POP = Point of Purchase, i.e., advertising materials for sales promotion.)

But it gets even crazier after that! It turns out that back when Mr. Watanabe—who would later become D-POPS GROUP’s Managing Executive Officer—was still at Yodobashi Camera, he gave the advice, “Starting a POP company like this will be good, and it’ll make business come around more smoothly.” And that’s how graphD was founded!

Sugihara:
Such a wonderfully small world!

Kato:
At that time, I had absolutely no connection with Mr. Watanabe. Without knowing any of that background, I proposed it simply as a deal I had found by myself. When I discovered the facts later, it felt like the dots were finally connecting into a line.

Looking back over my 20 years here, there have been many such chaotic or coincidental events, but now I truly feel that each piece of the puzzle has come together to form the current shape of the group.

◆The Importance of People for D-POPS GROUP’s Style of M&A

Sugihara:
From the acquisition of graphD, I believe about 15 companies have joined D-POPS GROUP since then. Behind the scenes of closing that many deals, you must have been examining a vast number of projects.

Kato:
Yes, it’s more than I can count, ha ha. If I were to list out the cases for this year alone, I’ve inspected somewhere between 300 and 400.

M&A agencies often tell me, “There’s absolutely no other company with conditions like yours.” For example, I set high standards, such as profitable companies with annual sales of 1 billion yen or more, and they tell me such excellent deals won’t just come rolling by. Nevertheless, we’re going to keep on narrowing down the potential candidates to only the truly valuable ones.

Sugihara:
Out of those 300 to 400 cases that you examine, how many proceed to an actual interview?

Kato:
Only a very few hand-picked enterprises proceed to the interview stage. However, I believe that the selection process itself is extremely important.

Sugihara:
Among that vast number of projects, what criteria or standpoints do you have for deciding whether to meet with someone?

Kato:
Intermediaries often ask me to provide specific company names or industries, but that’s actually difficult to do.

The current challenges that are brought up at D-POPS GROUP’s board meetings, and the existing resources we possess: where these two intersect is our criterion for evaluation. When a group ecosystem becomes as developed as ours, if you map out industry areas represented by our companies, most are already filled. So how do you look for gaps? Although cases that are too far from our areas are out of the question, I think a vertical integration model that can only complement our existing businesses is not enough.

It’s not just about acquiring the competition and increasing the scale of our company, it’s about whether or not we can imagine a specific M&A opening up interesting future developments when combined with our current business. I always evaluate a case according to whether or not the company in question would fit within the vision we have for our future and create new value in a multi-dimensional way.

Sugihara:
Suppose you do find a project that fills a missing piece or gap in D-POPS GROUP’s portfolio. After it passes the document review and you meet the CEO in person, what other areas are being checked?

Kato:
Above all, we place extreme importance on whether their atmosphere and culture match those of our other group companies. Even if the industry is different or they don’t use the exact same words as us, as long as our underlying values are the same, we can respect each other. We value that sort of instinct. On the other hand, people who take a one-sided approach to conversation from the very beginning are difficult to work with.

One particular thing I watch out for during interviews is whether they’re at a “presentation ceiling”, so to speak. By that, I mean putting on makeup to make themselves look better just for the interview. But I can see through that. There have been cases in the past where that makeup peeled off during the Due Diligence (DD) process, and the deal fell through.

Sugihara:
What specific steps do you take to discern that?

Kato:
We never conduct a so-called “stress interview”. We’re more interested in listening to each other’s dreams and figuring out if we can possibly enjoy a future together. To decide this, we usually meet twice. The first time is with me alone, and the second time is a deeper discussion with President Goto. However, there are many things you can’t see from just talking about theories, so we make it a point to have dinner together, as well.

The words that slip out when someone has had a drink, the passion they show when talking about dreams…once you finally break into those deep conversations, you will see a person’s true self.

President Goto’s interviews and dinner meetings are usually over three hours long. He intentionally takes that much time to deeply understand people’s backgrounds. While transmitting that level of intensity, we ultimately judge based on the essentially human question: “Do we want to create the future together with this person?”

Sugihara:
Among the M&A deals you’ve handled so far, are there any cases that were particularly memorable or challenging?

Kato:
Our M&A strategy is based on the policy of supporting business owners’ growth, so it is very rare for founders to exit their companies after their acquisition. In principle, our style is to have founders join our group and run together with us toward growth. That is precisely why, in the few cases where founders do exit their companies after joining D-POPS GROUP, the messages regarding the vision they’ve entrusted to us leave a very strong impression.

Even after the acquisition, I want those people to never stop thinking, “I’m so glad I entrusted my business to this group back then.” It is my absolute duty to take the baton and grow that business even further with our new partners, and I feel this responsibility more strongly than anyone else.

Sugihara:
On the other hand, have there been cases where you were forced to make a painful decision?

Kato:
Yes. I still ask myself from time to time whether we made the right decision regarding one company we had acquired, and then ultimately sold to another company.

From a business perspective—making an administrative decision, or in the sense of gaining a return on investment—that may have been the right choice at the time. However, my style is to enter the other person’s world and walk alongside them until closing out the deal, and valuing their feelings all the while. Because I care about individual companies as much as I cared about our individual stores, I still have lingering regrets about that one case.

Sugihara:
Precisely because you value people that much, people choose D-POPS GROUP for reasons beyond just the monetary value.

Kato:
Exactly. I don’t think the acquisition prices we offer are the highest compared to other companies. In fact, it’s more often not the case. However, CEOs will hand over their companies to us and say, “I’ll leave it to you.”

Because they don’t choose us just for the money, I feel the weight of responsibility for their entrusted vision even more heavily. I believe my mission as the M&A lead is to coordinate within the group to see that their trust produces results.

Sugihara:
You mentioned that in extraordinarily rare cases, founders pass the baton of their business to D-POPS GROUP and then step down. I heard that sellers usually don’t explicitly state their desire for how you should grow their companies, but in your position, how do you respond to that kind of expectation?

Kato:
Those expectations aren’t directly spoken in words. However, in the process leading up to them choosing us, I always make sure to ask, “Why did you decide not to go with another company?” Along with the details that we get through the intermediary agencies, I see that accumulation of information as the CEO’s feelings that they couldn’t express out loud, so I make sure to place high value on it.

What always gives me the greatest impression is the dinner that serves as a ceremony for passing the baton. The CEO will say to the employees who are staying with the company, “Thank you for everything. From now on, within this group, continue to do your best!” Those words are a testament of trust in us, effectively saying, “You’ll be fine with these people.” Coming on the back of that kind of moment, I feel a powerful sense of responsibility that I absolutely cannot ever betray those people.

◆The “Flow of Energy” that President Goto Values

Sugihara:
When it comes to the M&A process, has anything President Goto said left an impression on you?

Kato:
It would have to be one phrase: “The flow of energy is bad”. This is the toughest thing to deal with, ha ha. The intermediary agencies will work desperately to find the kind of deal that might only come around once a year or so, and we’ll reach a certain point. But if President Goto says, “The flow of energy is bad”...there’s simply nothing we can say to that, ha ha!

Sugihara:
When you investigate a case yourself and then propose it, only to be told such a thing, is it hard for you to accept that?

Kato:
To be honest, in the past, I really couldn’t accept it at all. Back then, I was only looking at the numerical aspects, group synergy, and positioning in the industry, but now I think I was completely missing the essential human element.

But after doing my homework many times, I’ve gradually come to a place of understanding. I’m able to realize, “Ah, this must be what President Goto was concerned about!” Nowadays, our intuitions are much more likely to align. Although, there are still some times I feel disappointed when a project I’m personally attached to gets rejected, ha ha.

Sugihara:
Besides the flow of energy, what other perspectives do you feel President Goto has regarding finances or business performance?

Kato:
I think President Goto keeps the sharpest eye on how other leaders make intentional decisions.

He often says, “A stack of blocks doesn’t grow just because one block stands out.” He means one person doesn’t need to be the top in everything. On the other hand, as Corporate Planning Head, I take pride in the fact that I’ve worked quite hard to make sure I’m not a burden to our group.

I’ve been given responsibility for practical numbers and for negotiating M&A terms, but for the highest level of decision-making that happens in our board meetings, the board members’ perspectives are also crucial. For large cases, President Goto personally holds preliminary discussions with President Naito and Chairman Semmoto to thoroughly bounce ideas off of them. I incorporate the feedback from that coordination process into our business plans and M&A contracts. After going through such a rigorous process, those CEOs and their businesses finally become our colleagues and join the list of our group companies and investment portfolio companies.

Sugihara:
After handling M&A for this many years, what is the moment that made you feel the most fulfilled?

Kato:
For most entrepreneurs, an M&A is a once-in-a-lifetime, high-stakes endeavor into which they’ve poured their very lives. To be present at such a critical juncture is truly an honor.

Actually, everything I’ve done here at D-POPS GROUP stems from an ambition I’ve held since before I even joined that accounting firm: the desire to stand by and support the visions of entrepreneurs. Now, being able to support life-altering decisions through M&A makes me feel like I am right at the core of my professional purpose.

Sugihara:
You hold the major dual responsibilities of being Faithful’s CEO and the head of M&A for the entire group. Is there anything you have to keep in mind while wearing those two hats?

Kato:
After becoming a company president myself, my respect for the CEOs of our other group companies has grown even stronger. I don’t think I would have ever truly grasped this feeling if I had remained only in charge of M&A.

You can’t feel the true challenges and the sense of loneliness that comes with being a leader until you become one yourself. Back when I first joined and was focused on launching the administrative office, the staff working in the stores sometimes looked at me coldly, thinking, “Who does this ‘executive candidate’ think he is?” But now, having the perspective of a business owner, I understand how to bridge the gap between different departments and standpoints.

I can have a bird’s-eye view of the group as a whole, while also handling the management of a customer-facing business. That sort of environment is an extreme luxury, and it’s a challenge I find deeply rewarding.

Sugihara:
In your busy life with multiple roles, how do you balance your professional life with your private life, and what do you value most in life?

Kato:
One of the major catalysts for me aiming to become a CEO was joining Entrepreneurs’ Organization (EO). Ever since I joined the company around 2007, my mentors would tell me that EO is an incredible place, and I started aspiring to get there someday.

What I learned there wasn’t just management know-how; it was something more fundamental, like a philosophy of life. “We have to face the reality that all people eventually die. How do you want to meet your end?” I often have opportunities to talk deeply with my EO colleagues about topics like that.

My hope is that at the end of my life, my companions and I can look back and say, “We really worked hard back then.” Expanding this circle of gratitude has become my life’s guiding principle.

On a personal note, I’m still very close to my wife, whom I met when I was 19, and this year marks our 30th year together. Having a peaceful family life is a huge support for me.

My personal life hasn't always been smooth sailing. At age 41, I suffered from cancer, and then developed a complication that occurs in only one in a million people. Just the other day, my doctor told me, “You don't need to take medication anymore,” so my battle with that illness has finally settled down, and I feel a sense of relief. It is precisely because of this experience that the importance of family and companions has truly hit home.

By becoming ill and learning my own weakness, I feel that the words ‘integrity, humility, and gratitude’ are finally all connected inside me. From now on, just as I was supported by others, I want to be the kind of person who can be a support for someone else.

◆On “Realizing a Venture Ecosystem”

Sugihara:
D-POPS GROUP aims to realize a Venture Ecosystem. What parts of this goal resonate most with you? Are there any specific mindsets or activities you focus on while building this ecosystem together?

Kato:
Actually, during my job interview 20 years ago, President Goto spent three hours passionately talking to me about his concept for a department store. The idea was to have a cafe, a mobile phone shop, and a perfume shop all within the same building. He said it would be amazing if they could create synergistic effects to generate customer satisfaction.

While the exact shape of that has changed, I believe that was the prototype of the Venture Ecosystem we are aiming for today.

Twenty years have passed and our business model has evolved, but the underlying desire to “create delight and brightness for people” has not changed at all. In the past, it felt like our work was about survival plus a little extra, but now we have gained enough momentum to influence society more broadly, such as through educational support. I can feel that advancement firsthand.

Sugihara:
What do you intentionally do every day to make the Ecosystem even stronger?

Kato:
Almost like clockwork, a difficult situation has occurred roughly every five years, ha ha. But no matter whether we have a serious storm or smooth sailing, I stay focused on three things we have championed for a long time: stand your ground, never stop challenging yourself, and grow at triple speed.

The delight and brightness found in our company name (D-POPS stands for Dream–Produce One’s Pleasure and Shining) can never be created by maintaining the status quo. We apply a comfortable amount of stretch to ourselves and work together to take on lofty goals that at first seem impossible. That process of challenging ourselves creates triple-speed growth, which ultimately leads to someone else’s delight and our own brightness.

To me, the act of keeping this cycle going builds up our Ecosystem.

◆5-year Vision

Sugihara:
Where do you see yourself and Faithful five years from now?

Kato:
I want to reach the level that when someone hears the term ‘direct marketing’ within the context of D-POPS GROUP, he or she will immediately think of Faithful (URIZO).

For nearly the first 10 years after joining, I was responsible for financial strategy, and in the period since then, I’ve handled M&A strategy. If I can firmly establish marketing strategy as a third pillar, I believe I can make a significant contribution as a foundation for the group. My ideal is for the next person who takes over the systems I’ve built to polish them and make them even stronger.

Sugihara:
Will the newly added service, URIZO, be the key going forward?

Kato:
Yes, I want to ensure it is seen as the key. This business, which we took over from a subsidiary of a listed company in 2024, plays an extremely important role in the overall marketing strategy of the group. It is still in the seed stage, but my current mission is to grow it into a large sprout as quickly as possible.

Sugihara:
With the spread of AI, the nature of marketing is changing. What challenges do you see up ahead?

Kato:
We live in an age where anyone can easily obtain primary information and launch marketing measures using AI. That is exactly why it’s absolutely necessary to differentiate ourselves by doing what AI cannot mimic.

I feel there is a literacy gap here similar to what we saw with mobile phones in the past. As digital becomes more prevalent, analog marketing such as mailing out letters attracts attention again, and proposals that carry human emotion rather than being left entirely to AI will gain value. It’s about the multiplication of the latest tools with human ingenuity and passion. I believe the battle from here on out will be determined by how we combine those two.

Sugihara:
Finally, do you have a message for those reading this article?

Kato:
Looking back on my experiences, my major failures leave a stronger impression than my successes. Even so, I learned from those failures, was given another chance, managed to fix those mistakes, and created things that made people happy. For me, one important aspect of this group’s corporate culture is getting a second chance, or many chances, so one can try again and again. I want to continue challenging myself without fear of failure and create new, enjoyable experiences that bring value to the group. If reading this article increases the number of colleagues who resonate with our Ecosystem, I couldn’t be happier. Let’s have fun challenging ourselves and change the world together!

Interview conducted by D-POPS GROUP’s advisor Genta Sugihara.

D-POPS GROUP Co., Ltd.

Managing Director, Operating Officer, and Corporate Planning Head Takahiro Kato

Faithful Corporation

Company Co-President: Takahiro Kato
Address: 32F Shibuya Hikarie Building, 2-21-1 Shibuya, Shibuya-ku, Tokyo

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We are building a platform where companies both within and outside our group are supported not just through funding, but through sales cross-promotion, talent recruitment, etc. Do you feel like any of these have something in common with your initiatives, or are there any points you particularly resonate with? Yamaguchi: Where I deeply resonate with your vision is looking at the overall flow and connections, rather than focusing on a single, isolated part. For us chiropractors, too, if a patient bumps their elbow and experiences numbness in their pinky finger, for example, we don’t just treat the pinky; we analyze their posture overall to figure out why that happened. Similarly, for stiff shoulders, we look beyond the shoulders themselves, checking the height of their computer monitor, their chair’s position, and their environment in general to help their shoulders get better. I feel like where your perspective aligns with mine is the way we look at something through its connections. 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2026.06.02
[Founder Interview #6] Hiroshi Yamaguchi (Aoyama-Itchome Chiropractic Clinic) – Part 2
The Body is an Executive’s Precious “OS”: Maximizing Productivity by the Investment of One’s Posture In this second part of our three-part interview, we dive deep into the profound impact that loneliness and mental stress can have on executives’ physical bodies. We reveal the striking parallels between a professional’s perspective—analyzing patients’ walking style, facial expression, and tone of voice before they even sit in the chair—and an investor’s evaluation of an entrepreneur’s “human OS”. Director Yamaguchi also shares the fundamental, biological truth that posture and facial expression mutually reinforce each other, and he opens up about the exact moment that set him on his lifelong path to chiropractic medicine. (This interview was conducted in March 2026.) If you haven’t read Part 1 yet, you can do so here. ◆An Entrepreneur’s Body is Like an “OS”, and Posture is an Investment towards Maximizing Productivity Sugihara: I believe this topic is incredibly vital for young entrepreneurs in the IT and tech sectors. Many of these founders belong to a generation that has had a smartphone in their hands for as long as they can remember. Could you break down what happens when you have poor posture in a way that speaks directly to them? Yamaguchi: As I emphasized earlier, I want leaders to view correcting their posture not simply as a health routine, but as a direct investment to ensure the success of their current business—an investment to maximize their productivity. For corporate executives and others who work in startups, your physical body is like your OS (Operating System). No matter if you have amazing software (i.e., your skills and strategies), they’re meaningless if the underlying OS isn’t running smoothly. That OS is your own body. Sugihara: Right, if the OS is full of bugs, you won’t be able to realize the framework you’ve envisioned in your head, even if you have great apps. Yamaguchi: Precisely. While your health is not all about posture, posture is still a deeply important part. That is the exact message I want to convey. ◆Stress Stiffens the Body: the Mechanism of Mental Fatigue Sugihara: Within D-POPS GROUP, we have 25 group companies and have invested in about 30 other portfolios. Their leaders are all working incredibly hard across various fields to solve pressing social issues. However, various forms of pressure—such as cash flow issues or HR problems—start to hit once people step into an executive role, yet many find themselves in a position where they can’t talk about it with anyone. Call it the loneliness of leadership if you will, but they have to persevere while carrying burdens they can’t share. Does this kind of condition easily contribute to physical ailments? Yamaguchi: There is physical fatigue, which comes from holding up or carrying something. But there is also mental and emotional fatigue; the exhaustion caused by constantly having to be overly mindful of others, the pressure of endless problem-solving, or being caught in the middle of conflicting parties. This also can cause muscles to stiffen. In fact, while physical fatigue can be relieved to some extent by moving and stretching, mental fatigue often causes a greater effect on the physical body. Take the old Japanese idiom, “Drowning in debt so deeply your neck won’t turn”. Continuously worrying about something or experiencing hardships one after another causes your neck and shoulders to become incredibly stiff, leading to insomnia, migraines, etc. People in ancient times were purposely verbalizing those exact physical symptoms. That phrase describes one of the classic physical symptoms triggered by extreme stress. When the idiom was coined, the word “stress” didn't even exist, but to put it in modern terms, “stress physically prevents your neck from turning”. I once treated a CEO from a foreign company who didn’t know much Japanese. Suspecting that his chronic headaches and neck pain were purely stress-induced, I asked him in English, “How do you like your new boss?”, to which he replied, “He’s a pain in the neck.” In Japanese, the equivalent phrase would directly translate to ‘He hurts my head’, but it’s clear that in both Japanese and English, people express the biological truth that stress targets the neck. ◆Cranial Nerves Directly Affect the Neck and Shoulders: the Biological Mechanism of Stress Sugihara: So, continuing to internalize all that pressure will impact the body. Yamaguchi: Exactly. People who spend an entire day working alongside someone they have to tiptoe around or completely clash with, they’ll often have stiff necks and headaches by evening, even if they weren’t sitting down. That isn’t physical exhaustion; it comes entirely from emotional fatigue. The reason for this is that most movements below the shoulders are controlled by nerves originating from the spinal cord—a body part with no emotions—so no matter how mentally exhausted or stressed you are, your arms or legs won’t suddenly refuse to move. However, motions in the head, neck, and shoulders are connected to the cranial nerves, which emerge directly from the brain itself, which processes your emotions. Mental stress, anxiety, frustration, and worry travel directly along those nerves, causing the muscles in the neck and shoulders to immediately tense up. There are 12 pairs of cranial nerves. Among them, the 11th pair—known as the accessory nerves—directly stimulates the major muscles responsible for moving the neck and shoulders, such as the sternocleidomastoid muscle. When this specific nerve is compromised by emotional stress, your neck won’t turn and your shoulders become as hard as rocks. Also, nerves come out of either the left or the right sides of the body. If a right-handed person experiences tension exclusively on their left neck and shoulder, there’s a chance that it’s not being caused by a behavioral habit like how they hold their smartphone, but rather, it might be resulting from a cranial nerve. ◆The Path from Young Train Enthusiast to Chiropractor Sugihara: Spoken by a true professional, ha ha. By the way, had you been aiming for this specific career path since your student days? Yamaguchi: No, not at all, ha ha! Back in my student days, I was completely obsessed with steam locomotives. I spent all my time traveling across Japan, from the wilderness of Hokkaido down to the southern tips of Kyushu, just to take photos of trains. I was a total fan of train photography. But since I had absolutely no money, I traveled on an incredibly grueling budget and schedule. I’d catch a train at midnight, scramble to make a transfer around 3:00 AM, and finally arrive at my destination around 6:00 AM. Combined with the return trip home, it was quite rough on my body. My family home was in Shinjuku, so I would frequently drop by the Kinokuniya bookstore to stand in the aisles, using books about stretching as references. Even after graduating from university, that habit of visiting Kinokuniya stuck with me. One day, while wandering through the orthopedics section, I found a book written by a chiropractor titled Improper Backbone Shape Triggers These Illnesses. When I picked up that book, I had no idea what was inside, but it became the very reason why I entered the chiropractic world. The book’s contents were absolutely fascinating to me. Until that moment, I had always assumed physical pain was exclusively caused by overdoing things or bumping into something. But this book claimed that poor posture alone could cause problems for all sorts of body parts. I found it so intriguing that I immediately called the phone number printed in the book, and they pointed me toward an institution where I could actually study chiropractic medicine. ◆Quitting a Job, Working Part-Time Every Night, and Studying until Morning Yamaguchi: I agonized over the decision for a few months, but I finally made up my mind, quit my corporate job, and worked part-time while studying. At the time, I worked at Potomac, a traditional-style coffee shop inside the Akasaka Prince Hotel. My shifts ran from 4:00 PM until 12:30 AM. Afterward, I’d get a ride back to my home in Waseda and keep studying until daybreak. However, that study schedule didn’t bother me in the slightest. Perhaps because my sympathetic nerves were stimulated from my part-time job, I was able to stay very focused deep into the night. Just like when I was studying for university entrance exams, my brain was operating at full power. Every single day, I would completely lose myself in anatomy textbooks until dawn. Just as it was becoming light outside and people were starting to walk around, I’d fall asleep. Then, I’d wake up in the afternoon, and head back to work again. Looking back, I sometimes wonder if my father’s experience as a combat medic treating wounded soldiers in the war got passed down to me through DNA or something. He wasn’t a military surgeon, but as a combat medic, he still treated countless individuals under extreme pressure. I am not a medical doctor either, but the fact that I have dedicated my life to preserving people’s health makes me feel connected to him somehow. Sugihara: How many years ago did you first become independent? Yamaguchi: My first time trying to go independent was about 40 years ago. I was naive, so I simply registered my home address as a chiropractic research institute and mailed advertisements to dozens of companies listed in the quarterly business journal. I remember pouring a drink and eagerly waiting by the phone to see how many responses I’d get…but of course, there weren’t any, ha ha. There were no personal computers back then, so I had simply typed a plain text document on a word processor. No diagrams, and no one whom I could use as a reference. It was just a letter stating, “I wish to help meet the health needs of your company’s employees.” However, when I shared what I was doing with my mentors and close friends from university, three of them actually went out of their way to negotiate with their respective employers. They managed to get permission for me to utilize their companies’ medical rooms and employee lounges once a week or twice a month. Instead of having to force my way in, I was able to build up my practice through those companies officially. Later on, I was contacted by a famous practitioner in Shibuya who recruited me into one of Japan’s top-tier chiropractic clinics. Their clients were prominent figures from various fields, including three former Prime Ministers, professional athletes, executive members of major businesses, major real estate companies, and the aviation industry, well-known celebrities, etc. Sugihara: And you call that your ‘training period’? Ha ha… Yamaguchi: Yes, that really was my training period before I went independent. At that clinic, some of the patients wouldn’t pay any attention to me, but when the director entered, they would smile happily and start a conversation. When I saw that, it ignited a fighting spirit inside me. After all, it was perfectly natural that none of them would be particularly interested in talking with a young kid, since they were coming to see the director, who they felt would keep their bodies in good health. At some point, I had the thought that I would become like him someday. ◆A Professional’s Perspective: Analyzing a Person through Walking Style, Facial Expression, and Tone of Voice Sugihara: In your line of work, dialogue must be a critical component of administering an effective treatment, right? Yamaguchi: It is absolutely necessary. Observing the way a patient walks through the door, their responsiveness when speaking, or any subtle deviations from their usual baseline is part of the treatment, not just the physical adjustment. Keep in mind that patients who are bordering on clinical depression, for example, present themselves with a rounded spine and a downward gaze the moment they enter. Even the person’s response to a greeting can signal that something is not right. I approach every treatment by holistically evaluating a person’s walk, sitting posture, facial expression, and voice. Sugihara: I resonate with that deeply. Back when I worked in business development, and even now when I interview entrepreneurs as an investor, it is exactly the same. Naturally, I ask structural questions about their business model, market domain, and technical solutions. However, what I am truly analyzing is the expression on their face when they walk into the room, the level of confidence radiating from their answers, and the way their eyes light up when you hit them with a poignant, spot-on question. My primary goal is to thoroughly evaluate the individual’s underlying OS. It’s the same sort of evaluation. Yamaguchi: I actually conducted a survey among students at Waseda University regarding their impressions of individuals with rounded backs. The overwhelming responses were descriptions like “lacks confidence”, “frail”, or “looks like life isn’t going well”. Furthermore, a slouched posture is a primary reason people look prematurely aged. Conversely, an upright, elongated spine not only projects youthfulness but physically lifts the muscles that control facial expression and optimizes blood flow to the brain. When posture collapses, cerebral blood flow stagnates, causing brain activity to decelerate. Correcting your alignment is truly a strategic investment that simultaneously optimizes both your internal state and your external presence. Sugihara: Absolutely, a slouch immediately projects a lack of confidence. I pay close attention to facial micro-expressions during interviews as well. Occasionally, someone will give off a distinct negative vibe or energy. No matter how eloquently they speak, it makes me pause and reconsider forming a deep partnership with them. Alternatively, when reconnecting with an entrepreneur after a while, even if they say, “I’m doing great,” I will cross-reference that statement against their posture, eye strength, and overall expression. If I sense an underlying misalignment, I gently prompt them to tell me if anything is wrong, and adjust how I interact with them if necessary. Yamaguchi: Facial expressions dictate your physical state, and your physical state dictates your facial expressions. This goes both ways. For example, when a patient’s stomach lining is inflamed, the distress often manifests as acute tension in the upper back. While I cannot physically massage someone’s internal organs, relieving the tension in the back muscles can indirectly soothe the stomach. The same principle applies to depression. By physically unburdening and loosening the spine, I can often alleviate some of the emotional weight clouding the mind. The body and the mind are profoundly and inextricably linked. ~To be continued in Part 3~ Interview conducted by D-POPS GROUP’s advisor Genta Sugihara. Aoyama-Itchome Chiropractic Clinic Director: Hiroshi Yamaguchi Address: 740 Win Aoyama, 2-2-15 Minamiaoyama, Minato, Tokyo Website: https://aoyama1.jp/ Next, in the third part of the interview, we discuss: ・The move to Aoyama-Itchome and the spirit of altruism that led to appearing on TV ・Essential reasons why business leaders must be healthy, according to Soichiro Honda ・Similarities with a Venture Ecosystem ・And other topics Be sure to check it out here: https://d-pops-group.co.jp/en/column/aoyama1-yamaguchi-part3/
  • Interview
2026.05.29
[Founder Interview #6] Hiroshi Yamaguchi (Aoyama-Itchome Chiropractic Clinic) – Part 1
Before Your “Health Circuit Breaker” Trips: What Executives Need to Know About the Body’s Warning Signs and the Power of Posture For this installment, we interviewed Director Hiroshi Yamaguchi, a chiropractic professional with a career spanning nearly 40 years. After encountering one single book, Dr. Yamaguchi quit his job to pursue chiropractic medicine, studying while working part-time jobs in the evenings, and began working at a chiropractic clinic in 1987. Driven by a desire to practice a treatment philosophy aligned with his own values, he went independent and opened the Aoyama-Itchome Chiropractic Clinic, which has been operating to this day. He has treated a cumulative total of over 90,000 patients. As a director of the Japan Posture Education Association, he has taught courses at the Open University of Japan and appeared across various media platforms, serving as a prominent figure in the field for many years. We sat down with Director Yamaguchi to learn a professional’s perspective on why leaders ought to consider their bodies as an asset, which provided critical insights for building a Venture Ecosystem. (This interview was conducted in April 2026.) ◆What is a “Health Circuit Breaker”? — The Moment the Body Hits Its Limit Sugihara: One passage from the pre-interview report you shared with me left a deep impression on me. “For people who work incredibly hard, even if they aren’t sick, sometimes their physical health will very suddenly fail. I think of this as a “health circuit breaker” tripping. To use an electrical analogy, it’s like running your appliances right at maximum capacity, and the moment you turn on the microwave, the breaker trips.” I think a lot of people have seen this happen to themselves or their coworkers. Could you elaborate on the intent behind these words? Yamaguchi: When you are throwing yourself entirely into your work, you are usually aware that your body is tired. But if you aren’t experiencing actual pain, how do you react to that? Most people think, “If it doesn’t hurt, I must be fine. I can keep going.” This sort of “no pain means I’m fine” mindset is exactly what makes it easy for your health circuit breaker to trip all of a sudden. Even when the body is fatigued, even when joints are stiffening and muscles are swimming in lactic acid, it can still maintain high performance. This is because the body secretes “hustle hormones” like adrenaline to override the fatigue. Furthermore, the brain has a built-in filter that blocks out minor discomfort signals so they don’t disrupt our focus. In fact, if our brains didn’t do this, we wouldn’t be able to get any work done. To return to the electrical analogy, if an average person operates on a 30-amp capacity, an adrenaline-fueled executive’s capacity gets up to nearly 60 amps. Even while using a massive amount of electricity, the breaker doesn’t trip. However, because a person like that is running so close to the limit, the smallest, most trivial thing could suddenly blow the entire circuit. What I hope is that leaders will intervene before their bodies reach that point. ◆The Body Speaks in Tension and Stiffness, Not Words Yamaguchi: At the stage where you start thinking, “Am I using too much power?” like in the electrical example, tension and stiffness are the body’s signals. I want people to catch themselves at that exact stage and do something about it. Your body cannot communicate in words. Instead, it uses stiffness and tightness to tell you, “I’m exhausted”. For example, it can’t say, “If you stay seated for another 30 minutes, your lower back is going to seize up when you stand.” Instead, it gives you a heavy, dull ache while you sit. Your body gives you these kinds of signs. The thing that’s dangerous to do is to mask that discomfort with painkillers and keep pushing. There was a case where a patient repeatedly took medication to numb back pain and be able to keep playing golf, only for it to escalate into excruciating agony. The person finally went to the hospital, and learned it was a compression fracture. This is the equivalent of a small fire breaking out in your house, the smoke detector going off, and you disabling the alarm because it’s too noisy. If you ignore the warning, the entire house burns down. I am by no means anti-medication; it is absolutely necessary. However, using medicine solely to silence pain so you can continue working past your limits will result in damaging your body. Sugihara: I am sure this hits home with many of the executives and hard workers reading this right now. There must be a lot of people who experience a dull, lingering ache in their backs that they don’t think they could convey to a doctor even if they went to a clinic, but then the moment their stress levels drop, it vanishes naturally. At least, I know I myself experienced that during times when I had a lot of stress, ha ha. ◆What Diverse Leaders from Office Workers to Cruise Ship Captains Have in Common Sugihara: For our second question, from what professional backgrounds do Aoyama-Itchome Chiropractic Clinic’s patients come? Yamaguchi: The majority of my clients are everyday office workers and homemakers. However, I also treat a significant number of business executives and high-profile leaders. For instance, the captain of one of Japan’s largest luxury cruise ships is a regular patient. While a cruise ship’s route is predetermined, it is the captain’s responsibility to assess the waves and wind conditions in real time, deciding whether to steer slightly ahead or take a wide detour, and ensuring the passengers enjoy the safest, most comfortable voyage possible. In short, they are the ultimate decision-makers responsible for thousands of lives. Because of that heavy burden, they realize their own bodies must remain healthy. That is the mindset that brings them to my clinic. Sugihara: That’s a great point. To use a corporate analogy, the ship’s crew members are the employees, and the passengers are the customers receiving the service. The captain is the President or CEO. If the person at the top isn’t healthy, you simply cannot provide a safe, high-quality service. Yamaguchi: Precisely. Businesses are the same way. I also treat a woman who served as a top executive for a world-renowned theme park. She oversaw multiple massive divisions, including the theme parks, retail shops, music, and films, and she achieved incredible results. Even though she is highly dedicated to her own personal fitness training, she visits us regularly in order to keep up her physical condition. She once told a friend of hers, who was the CEO of a TV network, “The only reason I can perform this job properly is because I have a chiropractor looking after my body.” The role of chiropractors is to act as the behind-the-scenes supporters who help leaders to be able to succeed and smile, so hearing that was incredibly rewarding. Another long-time regular is a legendary broadcasting executive who led Japan’s massive transition from analog to digital television. The switch required replacing every single piece of broadcasting equipment and receiver in the country. He had to negotiate extensively with major electronics manufacturers, saying, “The networks are switching to these specifications, so you need to build products that match them.” For the manufacturers, making massive financial investments to build new factories in an uncertain climate was an immense risk. One of his subordinate directors later visited my clinic and admitted, “I could never have pulled off a negotiation that intense.” So, the fact that we enjoy seamless digital broadcasting today as a matter of course is entirely due to the grueling efforts of leaders like him. He came to us during a time when his body was under severe physical strain, and I am profoundly grateful I could be of some help. I urge everyone in your Venture Ecosystem, please take care of your bodies. Despite their demanding schedules, many of the executives who visit us make time for sports and hobbies—golf, tennis, mountain climbing, playing musical instruments, and so on. I like to ask them, “What do you do with your sports gear or instruments after you finish using them?” Almost all of them reply, “Of course, I clean and maintain them thoroughly before putting them away.” It certainly feels good to see your beloved tools looking nice and clean. Now, all I’m asking is for you to take just a fraction of the care and respect you show your gear, and direct it toward your own body. Strangely, many leaders meticulously maintain their equipment but leave their own bodies pushed to the absolute limit. If you keep stacking task after task onto an exhausted body and falling asleep without first winding down, fatigue will build up until it manifests as severe, debilitating symptoms. Even if it’s only for a brief moment in between tasks or after getting home, slowly stretching your joints and muscles will improve blood circulation and be beneficial to your health. ◆The Terrible Experience and Perception of Posture Both Shared by Executive Regulars Sugihara: You’ve shared several fascinating case studies of high-level leaders. Assuming their initial visit to your clinic was triggered by acute physical discomfort, do they typically continue to visit you on a regular basis? How do they end up there? Yamaguchi: Of course, I get many patients who only walk through my door after their circuit breaker has already been tripped. However, there are plenty of corporate executives who establish a routine of regular visits explicitly to prevent that breakdown from happening in the first place. The reason is simple: almost all veteran leaders have suffered some sort of terrible experience at least once in their past. They know from firsthand experience that if you wait until the system crashes to seek help, the pain is severe, it takes time, and it costs money as well. They have learned for themselves that regular maintenance ensures that symptoms remain mild or are prevented entirely. The more seasoned the executive, the better they understand the strategic value of regular checks and corrections. Unfortunately, they almost always have to go through a painful experience to learn that lesson initially. It is easy for people to respect conditions like bone fractures because the pathology is visible on an X-ray. Conversely, it’s much harder to keep in mind the compounding value of maintaining proper posture and proactively conditioning the body. People frequently interpret good posture as simply one type of hygiene, but actually, I want to tell people that keeping proper posture is an investment that leads to the success of what they’re doing now. Companies have a leader at the top, the directors, the employees, their families, clients, and shareholders. The physical vitality of that leader directly dictates the performance of the entire organization. Therefore, health is an investment towards realizing your corporate vision. ◆The Mechanics of Poor Posture: What Happens When We Stop Moving? Sugihara: Depending on the industry, leaders face vastly different physical environments. Some stand all day, while others are entirely sedentary. For executives, sitting in a boardroom for a five-hour marathon meeting is part of the job. What kind of negative mechanical impact does prolonged poor posture have on one’s physical health? Could you walk us through that specific mechanism? Yamaguchi: To put it basically, humans are animals. As the word suggests, we’re supposed to move. *Note: ‘animal’ in Japanese is dobutsu (動物), which literally translates to ‘moving thing’. When you sit for hours without moving, freezing your joints and leaving your muscles unengaged, your blood circulation stagnates. Blood is the transit system responsible for delivering oxygen and vital nutrients throughout the body while carrying away metabolic waste. What happens when that infrastructure stalls? Imagine forcing an employee to work from dawn until dusk while denying them meals and locking the restrooms. Anyone would collapse under those conditions. When you sit continuously and restrict your blood flow, that exact same systemic deprivation is occurring inside your tissues. Specifically, habits like crossing your legs or staring down at a low monitor compound this structural stress. The point I emphasize most heavily to patients is the layout of the environment where they spend the vast majority of their lives: the height of the chair, the height of the desk, the position of the monitor, and the ergonomics of the keyboard. This setup is critically important. Not just for five or ten minutes, you are locking your body into these positions for hours on end, so how it’s set up has an immeasurable impact on your body. Sugihara: I try to be mindful of it, but maintaining perfect posture over a long period feels incredibly difficult. Before I know it, my alignment slumps. Furthermore, modern business professionals can accomplish work via a smartphone, so is it definitely bad to have a posture that’s looking down? Yamaguchi: When you use a smartphone and tilt your head forward by 15, 20, or 30 degrees, the burden on your neck increases dramatically. It’s said that the posture typical of smartphone usage can be equivalent to placing roughly one-third of your entire body weight directly onto your neck and shoulders. The human head alone accounts for approximately 10% of your total body weight. Think of it like holding two 2-liter plastic water bottles. If you hold them tightly against your chest, it requires very little effort. But if you extend your arms straight out in front of you and try to hold those same bottles, the physical leverage multiplies the strain. Your muscles will give out in less than five minutes. That exact compounding fatigue is what accumulates in your upper back and shoulders every time you look down at a screen, triggering chronic shoulder stiffness, tension headaches, and an inevitable drop in mental concentration. The above illustration shows how much the tilt of one’s head impacts the strain on one’s neck. ~To be continued in Part 2~ Interview conducted by D-POPS GROUP’s advisor Genta Sugihara. Aoyama-Itchome Chiropractic Clinic Director: Hiroshi Yamaguchi Address: 740 Win Aoyama, 2-2-15 Minamiaoyama, Minato, Tokyo Website: https://aoyama1.jp/ Next, in the second part of the interview, we discuss: ・An entrepreneur’s body is like an “OS”, and posture is an investment towards maximizing productivity ・Stress stiffens the body – the mechanism of mental fatigue ・The path from young train enthusiast to chiropractor ・And other topics Be sure to check it out here: https://d-pops-group.co.jp/en/column/startupecosystem-part2/
  • Interview
2026.05.27
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