[RoseKnight] Toshiharu Kokubun, Representative of Earth Holdings and Charisma of the Beauty World, Wears RoseKnight's Iconic Model "An Eternally Beautiful World"
Toshiharu Kokubun, CEO of Earth Holdings, a leading figure in Japan's beauty industry with over 250 "HAIR & MAKE EARTH" salons, has been seen wearing the premium ring "An eternally beautiful world" from the silver jewelry brand "RoseKnight" (SEDY&Co Inc., Tokyo). This press release introduces Mr. Kokubun's unknown journey and philosophy, contrasting his media image of luxury with his personal stoicism.
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- 📰 Published: April 30, 2026 at 19:30
- 🔍 Collected: April 30, 2026 at 11:01
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Toshiharu Kokubun, Representative Director of Earth Holdings, a company that operates over 250 "HAIR & MAKE EARTH" hair salons nationwide and has continuously led Japan's beauty industry, has worn the premium ring "An eternally beautiful world" from the silver jewelry brand "RoseKnight," developed by SEDY&Co Inc. (headquartered in Minato-ku, Tokyo).
RoseKnight "An eternally beautiful world"
Known as a "legendary entrepreneur" with an annual income of 300 million yen and living in a 1 billion yen mansion, Mr. Kokubun is also surprisingly stoic, commuting by train and eating only one meal a day. This article unveils his little-known journey, the significance of wearing this RoseKnight piece, and his ongoing evolution.
Toshiharu Kokubun (from official website)
Mr. Kokubun's origins: Moving to Tokyo alone from Fukushima and vowing "365 days without rest"
Born in Fukushima Prefecture in 1958, Mr. Kokubun initially worked at a sewing factory after graduating from a local industrial high school specializing in electrical engineering. However, driven by a strong desire to "become a business owner rather than working for others," he moved to Tokyo at the age of 19.
With only 100,000 yen in cash and an alarm clock in a duffel bag, he started working at a hair salon in Shinjuku-Kabukicho, setting a strict goal for himself: "become an owner by age 25." He imposed a rigorous rule: "Work 365 days a year, without a single day off, except for New Year's." He diligently adhered to this vow for almost 10 years until he became independent.
An anecdote still recounted today tells of him personally distributing 200,000 flyers in a single month to set an example for his staff. In a year and a half, he became a store manager, and five years later, a manager overseeing 17 stores. Mr. Kokubun steadily climbed the ladder towards becoming a business owner.
Revolutionizing the beauty industry with a "large-scale store strategy" and "Norenwake system"
In 1989, at the age of 30, he became independent, opening the first "EARTH" salon in Aoto, Katsushika Ward. Although it started as a small establishment with 17 tsubo (approx. 56 sqm) and 8 styling chairs, a visit to the United States in 1995 profoundly changed his business strategy.
What he saw there was an impressive salon spanning 400 tsubo (approx. 1320 sqm) with 100 staff members. At a time when small, independent salons were the norm in Japan, Mr. Kokubun quickly became convinced that "large-scale stores disperse staff risk and create stable management." Immediately after returning, he shifted his strategy, leading to a dramatic increase in performance.
Furthermore, another major pillar Mr. Kokubun built was his unique "Norenwake franchise system." This innovative mechanism allowed high-performing store managers to take over already profitable stores and become independent, achieving his goal of "nurturing 100 entrepreneurs" by 2018. Currently, he has produced over 120 owners and commands a group of over 3,000 staff, making it a top-tier industry leader.
EARTH (from Toshiharu Kokubun's official blog)
The "300 million yen income" celebrity CEO: A "role" to inspire dreams
Mr. Kokubun's lavish private life, frequently featured in the media, has captivated many. His Hamadayama home in Suginami Ward is a 17LDK, 10 billion yen mansion complete with a 150-tatami mat party room, pool, and jacuzzi. His garage houses luxury cars like a Ferrari 488 Spider and vintage motorcycles, and his publicly stated annual income is approximately 300 million yen.
Surprisingly, this flamboyant lifestyle is not driven by personal materialism. Mr. Kokubun states:
"I wanted young staff to dream, 'If I work hard, I can live in a house like this, ride a Ferrari.'"
The reality of Mr. Kokubun, who describes himself as an "actor playing the role of an entrepreneur," is quite different. He still commutes by train, eats only one meal a day, and drinks only company tea. He leads an extremely simple and stoic life.
Even after achieving success, he maintains the "humility to pick up a single yen coin" and a sense of crisis, thinking, "The company could go under at any time." This attitude truly reflects Mr. Kokubun's essence.
Mr. Kokubun's mansion Mr. Kokubun's mansion
Mr. Kokubun's mansion Mr. Kokubun's mansion
The aesthetic of "Jimi-Chikara" and current activities
Underpinning Mr. Kokubun's success is the philosophy of "Jimi-Chikara" (steadfast effort), which is also the title of his book. Cleaning toilets with bare hands, waking up earlier than anyone else, consistently doing the obvious things. His glamorous success is shadowed by the gritty accumulation of these efforts.
RoseKnight "An eternally beautiful world"
Known as a "legendary entrepreneur" with an annual income of 300 million yen and living in a 1 billion yen mansion, Mr. Kokubun is also surprisingly stoic, commuting by train and eating only one meal a day. This article unveils his little-known journey, the significance of wearing this RoseKnight piece, and his ongoing evolution.
Toshiharu Kokubun (from official website)
Mr. Kokubun's origins: Moving to Tokyo alone from Fukushima and vowing "365 days without rest"
Born in Fukushima Prefecture in 1958, Mr. Kokubun initially worked at a sewing factory after graduating from a local industrial high school specializing in electrical engineering. However, driven by a strong desire to "become a business owner rather than working for others," he moved to Tokyo at the age of 19.
With only 100,000 yen in cash and an alarm clock in a duffel bag, he started working at a hair salon in Shinjuku-Kabukicho, setting a strict goal for himself: "become an owner by age 25." He imposed a rigorous rule: "Work 365 days a year, without a single day off, except for New Year's." He diligently adhered to this vow for almost 10 years until he became independent.
An anecdote still recounted today tells of him personally distributing 200,000 flyers in a single month to set an example for his staff. In a year and a half, he became a store manager, and five years later, a manager overseeing 17 stores. Mr. Kokubun steadily climbed the ladder towards becoming a business owner.
Revolutionizing the beauty industry with a "large-scale store strategy" and "Norenwake system"
In 1989, at the age of 30, he became independent, opening the first "EARTH" salon in Aoto, Katsushika Ward. Although it started as a small establishment with 17 tsubo (approx. 56 sqm) and 8 styling chairs, a visit to the United States in 1995 profoundly changed his business strategy.
What he saw there was an impressive salon spanning 400 tsubo (approx. 1320 sqm) with 100 staff members. At a time when small, independent salons were the norm in Japan, Mr. Kokubun quickly became convinced that "large-scale stores disperse staff risk and create stable management." Immediately after returning, he shifted his strategy, leading to a dramatic increase in performance.
Furthermore, another major pillar Mr. Kokubun built was his unique "Norenwake franchise system." This innovative mechanism allowed high-performing store managers to take over already profitable stores and become independent, achieving his goal of "nurturing 100 entrepreneurs" by 2018. Currently, he has produced over 120 owners and commands a group of over 3,000 staff, making it a top-tier industry leader.
EARTH (from Toshiharu Kokubun's official blog)
The "300 million yen income" celebrity CEO: A "role" to inspire dreams
Mr. Kokubun's lavish private life, frequently featured in the media, has captivated many. His Hamadayama home in Suginami Ward is a 17LDK, 10 billion yen mansion complete with a 150-tatami mat party room, pool, and jacuzzi. His garage houses luxury cars like a Ferrari 488 Spider and vintage motorcycles, and his publicly stated annual income is approximately 300 million yen.
Surprisingly, this flamboyant lifestyle is not driven by personal materialism. Mr. Kokubun states:
"I wanted young staff to dream, 'If I work hard, I can live in a house like this, ride a Ferrari.'"
The reality of Mr. Kokubun, who describes himself as an "actor playing the role of an entrepreneur," is quite different. He still commutes by train, eats only one meal a day, and drinks only company tea. He leads an extremely simple and stoic life.
Even after achieving success, he maintains the "humility to pick up a single yen coin" and a sense of crisis, thinking, "The company could go under at any time." This attitude truly reflects Mr. Kokubun's essence.
Mr. Kokubun's mansion Mr. Kokubun's mansion
Mr. Kokubun's mansion Mr. Kokubun's mansion
The aesthetic of "Jimi-Chikara" and current activities
Underpinning Mr. Kokubun's success is the philosophy of "Jimi-Chikara" (steadfast effort), which is also the title of his book. Cleaning toilets with bare hands, waking up earlier than anyone else, consistently doing the obvious things. His glamorous success is shadowed by the gritty accumulation of these efforts.