[2][3][4] Kurosaki began studying Goju-Ryu Karate in 1951 at the "Asakusa-dojo" under Gogen Yamaguchi where Masutatsu Oyama also trained.
Five people, including Kurosaki, held a one-month training camp in Kinugawa from August to prepare for the October expedition to Thailand.
Kurosaki would later attribute his loss to being unclear with muay thai rules and not being accustomed of fighting with boxing gloves.
In addition to the people who provided financial support for the construction, Nakamura testified that "Kurosaki Shihan's contribution was very large.
In 1966, he stayed in the Netherlands for 11 months at the invitation of John Bluming, who later became the first chairman of the Kyokushin Kaikan Europe region, and provided guidance.
He would train various Japanese kickboxing talents, most notably Toshio Fujiwara, who joined the Mejiro Gym in July 1969.
[12] In 1978, Fujiwara won the title of Rajadamnern and became the first foreigner to win the Muay Thai championship, which Kurosaki had longed for.
Kurosaki was not bound by the framework of the All Japan Kickboxing Association, and was actively involved in matchmaking with American professional karate such as WKA and PKA, which had emerged at that time, and different types of martial arts such as muay thai.