Read manga: Takeki Ryusei

manga
Other name: 猛き龍星
Artists: HARA Tetsuo
Status: ongoing
Updated at: Dec 29, 2022
Summary:

Ryusei is the boss of a biker's group but he has to leave Japan to find money to cure his ill sister. When he will return he will discover that his group is now in close relationship with Yakuza and he will do everything he can to solve this problem.