Fist of the Blue REGENESIS Season 1

In the prequel work of "Fist of the North Star", the protagonist Kasumi Kenshiro was originally a lecturer at a university in Tokyo. He deliberately hid his abilities and looked like an ordinary person. But later, Li Yongjian, a friend of the Youth Gang, came to Tokyo to find him and said that his friend Pan Guanglin and his sister Pan Yuling were in trouble. Kenshiro set off to Shanghai alone to rescue them.