Ryuugongji Ken ends up dead.

Setting: Tao can travel through time and space the moment he shakes hands with Hinata's younger brother Naoto.

In order to save Hinata, Naoto asked Budo to go back to the past and prevent the Tokyo Swastika Society from becoming a criminal organization.

However, what he had to face when he returned to the martial arts of 12 years ago in order to change the future was the situation of being abused as a slave by Masaki Shimizu, a member of the Tokyo Swastika Society.