CHIERO INC.
The world is always tilted somewhere. Find the gap, bet your own capital, and turn it into something that keeps running on its own. CHIERO Inc. is an investment and R&D company based in Fukuoka, Japan.
Investing on our own judgment, and research and development using AI. We keep only what survives verification. This is the core of turning tilt into structure.
Sitting alongside business owners as they make decisions. Where and how to put AI into a business gets decided here too. Not handing over answers — standing on the same side and finding the structure together.
Over 200 books published. Through books and social media, we record ways of thinking and the tools that go with them, and deliver them to the people who need them.
An Introduction to Hagakure for Beginners reached #1 on Amazon Japan in the History & Geography Reference / White Papers category. All titles are in Japanese.
See every title on Amazon →From philosophy and Eastern thought to practical books on AI. Over 200 titles on Kindle. Written in Japanese.
Author page WEB APPTen questions to find your own shape of freedom. No sign-up, free to use. Japanese interface.
Try it WEB APPCheck your household disaster stockpile in three minutes and keep a rolling stock going. Your data never leaves your device. Japanese interface.
Open the appInterviewInvited onto the talk show “Kobayashi's Room” to talk about running a business alone. In Japanese.
TelevisionProvided footage to Nippon TV's The Tetsuwan DASH for its “Surprising Facts About Octopus” special — one of Japan's longest-running prime-time programmes. We were credited on air as the source.

CHIERO — Kou Nakata
FOUNDER & CEO
Born in Fukuoka, Japan. Studied IT and medicine at Kyushu University Graduate School, then left the research path to become a professional street performer — on the streets of Fukuoka and Tokyo, and as far as Sydney, Australia. Juggling and magic, stopping a hundred people in the first thirty minutes.
After about two years at an IT company in Tokyo working on marketing and problem-solving, he returned to Fukuoka and founded CHIERO Inc. in December 2020. Today he works on investment and R&D funded by his own capital, advises business owners, builds products, and writes.
This is a one-person company, so the company's history and the founder's are not kept apart. They are the same line.
Instagram is the fastest way to reach us.
For daily writing, note is updated almost every day — in Japanese.