The is a yakuza syndicate based in Tokyo. Originally named the , with its historic leader Hisayuki Machii, the Toa-kai was deeply involved in the history of Tokyo's South Korean community and Japan's anti-communist circles in the 20th century.
History
The group was formed by Hisayuki Machii, a Zainichi Korean mob boss, as the Tosei-kai in 1948. which was in conflict with the North Korea-associated General Association of Korean Residents in Japan.
Increasing police crackdowns by 1965 forced Machii to disband the Tosei-kai and establish a new gang, the , or "East Asia Friendship Enterprise Association". He also formed a "legitimate" company called the , or East Asia Enterprises Company, and named power-broker Yoshio Kodama as chairman of the board. Afterwards, the Toa Yuai Jigyo Kumiai changed the name as and Toa-kai.
The founder Machii retired in the 1980s,
Condition
The Toa-kai is a member of a bakuto fraternal federation named the Kanto Hatsuka-kai, along with four other Kanto-based yakuza syndicates, the Sumiyoshi-kai, the Inagawa-kai, the Matsuba-kai, and the Soai-kai. The Toa-kai has aligned itself with the largest known Yamaguchi-gumi syndicate since the syndicate's Taoka era in the 20th century, Yoshimi-Kogyo was dissolved in 2012.
The origin of the Yoshimi-kogyo reportedly traces back to the late 20th century, when Toshio Gibo, an ethnic Okinawan mobster, formed an anti-left nationalist organization named the Makoto-kai in Okinawa under influence of Yoshio Kodama. Gibo met with Machii through Kodama, founding an affiliate of the Tosei-kai in Okinawa.
Leadership
thumb|upright|The founding leader, [[Hisayuki Machii|Machii, featured on the cover of a biographical book after his death]]
- 1st President: Hisayuki Machii
- 2nd president: Fujimatsu Hirano
- 3rd president: Morihiro Okita
- 4th president: Shohei Futamura
- 5th president: Yoshio Kaneumi
- 6th president: Yasumi Hayano