[Shigodeki Series: Long-awaited Leader Edition] What are the Basics of Work for Anyone to Become a "Boss," Taught by President Nissy?
Diamond-sha released 'Common Sense for Capable Bosses Taught During My Consultant Days' by Ryo Nishihara (Nissy Shacho) on April 22, 2026. This sequel to the 155,000-copy bestseller systematizes 51 essential management skills for leaders struggling with modern workplace challenges.
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- 📰 Published: April 22, 2026 at 19:00
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The long-awaited second volume of the 'Shigodeki' series, following the bestseller 'Common Sense for Capable People Taught During My Consultant Days,' which exceeded 155,000 copies as the 'best-selling shigodeki book' (*), is finally here! 'Common Sense for Capable Bosses Taught During My Consultant Days' (written by Ryo Nishihara), which clearly explains the 'basics of being a boss' that no one teaches you, will be released by Diamond-sha on April 22, 2026.
Your life as a boss will change! Work techniques to achieve results with super ease.
Many people are promoted because they were evaluated as top players but fail to perform well as bosses. Modern managers face diverse challenges such as being unable to secure their own time, subordinates not acting as expected, and difficulties in giving warnings or guidance due to concerns about harassment.
These workplace worries arise from not knowing the basics of a boss's job. This book is a compilation of 51 skills that cover the 'common sense of a boss' that no one has taught before. It explains 'what not to do' and 'what should be done' to become a capable leader, using relatable 'common' episodes. Even those who worry they are not suited for leadership will acquire the techniques to successfully perform the 'job of a boss.'
The author is Ryo Nishihara (CEO of Meiji Cooker), also known as 'Nissy Shacho,' who shares business skills on TikTok and YouTube. In response to many consultations from followers troubled by relationships and communication with subordinates, the theme of the second series became 'The Boss.' Based on common traits of excellent bosses he saw during his consultant days and learnings from his own trial and error as a business owner, he has clearly verbalized the 'common sense of a capable boss.' Like the previous work, the content is practical and can be used immediately by anyone, regardless of job type or industry.
It covers a wide range of issues faced in the field, from the basics of management such as how to give instructions that don't confuse subordinates, how to prevent mistakes through systems rather than willpower, and the proper way to give feedback, to building relationships with older subordinates and responding when someone resigns. There is no need to act like an ideal boss or change yourself. This book condenses hints for becoming a 'shigodeki boss' who achieves results without overexerting yourself.
(*) Book genre: Books with 'Capable People' in the title. Dec 1, 2024 – Mar 31, 2026. Researched by CDP CANTERA.
■ Table of Contents
Introduction
Chapter 1: The Common Sense of 'Delegating' for Capable Bosses
Chapter 2: The Common Sense of 'Training' for Capable Bosses
Chapter 3: The Common Sense of 'Feedback' for Capable Bosses
Chapter 4: The Common Sense of 'Systematization' for Capable Bosses
Chapter 5: The Common Sense of 'Meetings, Emails, and Chats' for Capable Bosses
Chapter 6: The Common Sense of 'Mindset' for Capable Bosses
Conclusion
Reading list to become an even more capable boss
■ Author Profile: Ryo Nishihara
CEO of Meiji Cooker Co., Ltd.
After graduating from Keio University, he joined a management consulting firm established by a joint venture between a NY-based investment fund and a major general trading company. He participated in projects such as company-wide organizational reform, new business planning, and overseas business expansion strategies for emerging countries. Clients included major global printing equipment companies, major Israeli pharmaceutical companies, and major domestic telecommunications companies. After working there for five years, he joined Meiji Cooker in 2013 at age 30 to take over his father's business. He became CEO in August of the same year. In an industry facing chronic deficits, accelerated closures, low wages, hiring difficulties, and ultra-analog operations, he achieved 700% growth in both sales and employee numbers over 10 years. In 2019, he started sharing business skills on YouTube and TikTok as 'Nissy Shacho.' He has over 150,000 YouTube subscribers and over 220,000 TikTok followers. His first book, 'Common Sense for Capable People,' became a bestseller with over 150,000 copies sold.
■ Book Details
Author: Ryo Nishihara
Price: 1,870 yen (tax included)
Release Date: April 22, 2026
Publisher: Diamond-sha
Format: Shiroku-size, 304 pages
Amazon: https://www.amazon.co.jp/dp/4478123470/
Your life as a boss will change! Work techniques to achieve results with super ease.
Many people are promoted because they were evaluated as top players but fail to perform well as bosses. Modern managers face diverse challenges such as being unable to secure their own time, subordinates not acting as expected, and difficulties in giving warnings or guidance due to concerns about harassment.
These workplace worries arise from not knowing the basics of a boss's job. This book is a compilation of 51 skills that cover the 'common sense of a boss' that no one has taught before. It explains 'what not to do' and 'what should be done' to become a capable leader, using relatable 'common' episodes. Even those who worry they are not suited for leadership will acquire the techniques to successfully perform the 'job of a boss.'
The author is Ryo Nishihara (CEO of Meiji Cooker), also known as 'Nissy Shacho,' who shares business skills on TikTok and YouTube. In response to many consultations from followers troubled by relationships and communication with subordinates, the theme of the second series became 'The Boss.' Based on common traits of excellent bosses he saw during his consultant days and learnings from his own trial and error as a business owner, he has clearly verbalized the 'common sense of a capable boss.' Like the previous work, the content is practical and can be used immediately by anyone, regardless of job type or industry.
It covers a wide range of issues faced in the field, from the basics of management such as how to give instructions that don't confuse subordinates, how to prevent mistakes through systems rather than willpower, and the proper way to give feedback, to building relationships with older subordinates and responding when someone resigns. There is no need to act like an ideal boss or change yourself. This book condenses hints for becoming a 'shigodeki boss' who achieves results without overexerting yourself.
(*) Book genre: Books with 'Capable People' in the title. Dec 1, 2024 – Mar 31, 2026. Researched by CDP CANTERA.
■ Table of Contents
Introduction
Chapter 1: The Common Sense of 'Delegating' for Capable Bosses
Chapter 2: The Common Sense of 'Training' for Capable Bosses
Chapter 3: The Common Sense of 'Feedback' for Capable Bosses
Chapter 4: The Common Sense of 'Systematization' for Capable Bosses
Chapter 5: The Common Sense of 'Meetings, Emails, and Chats' for Capable Bosses
Chapter 6: The Common Sense of 'Mindset' for Capable Bosses
Conclusion
Reading list to become an even more capable boss
■ Author Profile: Ryo Nishihara
CEO of Meiji Cooker Co., Ltd.
After graduating from Keio University, he joined a management consulting firm established by a joint venture between a NY-based investment fund and a major general trading company. He participated in projects such as company-wide organizational reform, new business planning, and overseas business expansion strategies for emerging countries. Clients included major global printing equipment companies, major Israeli pharmaceutical companies, and major domestic telecommunications companies. After working there for five years, he joined Meiji Cooker in 2013 at age 30 to take over his father's business. He became CEO in August of the same year. In an industry facing chronic deficits, accelerated closures, low wages, hiring difficulties, and ultra-analog operations, he achieved 700% growth in both sales and employee numbers over 10 years. In 2019, he started sharing business skills on YouTube and TikTok as 'Nissy Shacho.' He has over 150,000 YouTube subscribers and over 220,000 TikTok followers. His first book, 'Common Sense for Capable People,' became a bestseller with over 150,000 copies sold.
■ Book Details
Author: Ryo Nishihara
Price: 1,870 yen (tax included)
Release Date: April 22, 2026
Publisher: Diamond-sha
Format: Shiroku-size, 304 pages
Amazon: https://www.amazon.co.jp/dp/4478123470/