Yoshida Shouyou

Yoshida Shouyou was a head of a private school named Shoka Sonjuku and the master of Oboro, Sakata Gintoki, Takasugi Shinsuke, Katsura Kotarou, and Imai Nobume.

Shouyou is the last split personality developed by Utsuro, a human who became immortal thanks to the high amount of Altana within his body.