Takanori Kataishi (Yutori-kun), Entrepreneur in the Spotlight, Releases First Self-Help Book! What Is the 'True Power of Verbalization' Needed in an Era When the Value of Intelligence Is Plummeting? 'Learn to Speak in Your Own Words' Releases June 17

The new book 'Learn to Speak in Your Own Words' by Takanori Kataishi (President and CEO of yutori Inc.), known as 'Yutori-kun' and famous across various media for achieving the youngest and fastest IPO in Japan's apparel industry, will be published by Diamond Inc. on June 17.

'Learn to Speak in Your Own Words' by Takanori Kataishi, published by Diamond Inc.

■ In an era when the value of 'intelligence' is plummeting, being 'smart' alone is no longer enough to move people—or to make them act.

What exactly is the 'power of verbalization' that can be applied to every aspect of life—work, relationships, love, parenting?

In recent years, bookstores' business sections, online articles, and video content have been flooded with keywords like 'what smart people do.' Speaking style, habits, thinking techniques, management, time management—being perceived as 'smart' by others has become a form of social value in today's world.

However, as AI usage becomes commonplace, it's becoming increasingly difficult to move people simply by possessing knowledge or stating correct facts. With AI, anyone can easily gather information and produce polished text. The value of mere 'knowledge-based intelligence' may continue to decline relatively in the future.

Moreover, scrolling through social media reveals a constant stream of 'sounding-wise' phrases and 'plausible' information that feels vaguely familiar. Most of these pass through people's memories without leaving a trace, vanishing as quickly as they appeared. In an age where AI compensates for intellect and social media provides ready-made phrases, being merely 'smart' is no longer enough to touch people's hearts.

This book, 'Learn to Speak in Your Own Words,' re-examines the true value of 'speaking in your own words' in such times. Most communication books have focused on 'how to convey' or 'what to say.' But this book emphasizes a different perspective: what truly matters is 'who is saying it.' The same words carry different meanings depending on who speaks them. Only words rooted in personal experience and genuine feeling can remain in people's memories and move others' hearts.

The author, Takanori Kataishi, is an entrepreneur who achieved the youngest and fastest IPO in Japan's apparel industry and has gained media attention as 'Yutori-kun.' As President and CEO of yutori Inc., he has led a young team with an average age in their 20s, mobilizing people through words, driving organizational action, and achieving results. In this book, he shares the mindset that transforms language into a personal weapon.

This is a book that nurtures the ability to 'engage with others in your own words'—a skill applicable not only to business but also to everyday relationships such as marriage, friendship, parenting, and romance.

■ Table of Contents (excerpt)
Prologue 1: Why doesn't anyone listen, even when I speak earnestly?

Prologue 2: What comes after 'He's smart, but...'

Prologue 3: A slightly harsh but true reality

Prologue 4: What matters more than 'how you say it' or 'what you say'

Prologue 5: Those who seek to be loved are not loved

Chapter 1: You have no choice but to live with style!

Where did your own words go? / The truth about stylish people / Where are stylish people looking? / The surfer and the outwardly nice abusive man / Don't cling / Why don't stylish people worry? / The benefits of astral projection and time travel / Don't escape into effort / Stylish effort vs. tasteless effort / Worry about your clothes every day

Chapter 2: The secret to becoming a stylish, tasteful person

Change your life without changing yourself / Those who 'wear' a brand vs. those who wear a brand but look tacky / How to look stylish and tasteful even in Uniqlo / Put down your smartphone and go to a vintage shop / Fashion sense is editing ability

Chapter 3: Learn to speak in your own words

Verbalizing 'verbalization ability' / Why your prepared self-introduction fails in interviews / A society turning into auditions / Logo-heavy T-shirts and mannequin humans / Why isn't your story interesting? / The secret to turning 'sounding-wise' words into your own / Heisei-era variety-style communication / Habits that bring out the best in you / How to move beyond elementary-school-level impressions

Chapter 4: Let others speak in their own words

A prescription for an age producing shallow relationships / Considering the components of conversation / Why do attractive people notice changes in others? / Qualities of a charismatic boss / Traits of leaders people want to follow / How to raise people who think and act independently

Chapter 5: This is how luck is polished

Why is that person lucky? / You're already lucky / Why are lucky people humble? / The story of a certain prisoner / How to manage your own mood

Epilogue: Words I hate

■ 'Learn to Speak in Your Own Words'

Author: Takanori Kataishi

Price: ¥1,760 (tax included)

Release Date: June 17, 2026

Publisher: Diamond Inc.

Format: B6 variant, 336 pages

URL: https://www.amazon.co.jp/dp/4478122776

■ Author Profile: Takanori Kataishi (Yutori-kun)

(PHOTO: TON ZHANG)

President and CEO of yutori Inc. Born in 1993 in Kanagawa Prefecture. After graduating from university, joined an IT startup focused on mobile games. Later, drawing from his roots in vintage clothing culture, launched the Instagram community media 'Furugi Joshi' (Vintage Girls), and in 2018 founded yutori Inc. with an initial capital of ¥100,000. Under the mission 'Turn Strangers into Stronger (Haguremono o Tsubumono ni),' he has produced multiple apparel brands (such as 9090) targeting Millennials and Gen Z. In December 2023, just 5 years and 8 months after founding, the company listed on the Tokyo Stock Exchange Growth Market, achieving the 'youngest IPO' in the apparel industry. In 2024, acquired heart relation Inc.—the company behind 'Her lip to' by former AKB48 member Yoneha Kojima—into the group, and by 2026 made it a wholly owned subsidiary. The company has now grown into an enterprise with over ¥14 billion in annual sales. On social media and YouTube, he communicates under the name 'Yutori-kun,' gaining attention for his effortless, cross-domain commentary on fashion, business, and even spirituality, often praised as 'incredibly skilled at verbalization.' He hosts his own radio show 'Yutori-kun Kuuncuun!!' on interfm897. Since 2024, he has also begun music activities, writing his own lyrics. In February 2026, he released his first EP 'KINGDAMN' digitally, making his debut as a solo artist.