Hijikata Toshizō
In the series, Hijikata receives a sword that is cursed with the spirit of a hikkikomori otaku nicknamed who was murdered by his frustrated mother. The sword causes Hijikata to act like an otaku, and makes him behave in strange and cowardly ways. After a long inner struggle between the two, Tosshi disappears from Hijikata during a contest to decide which group will be Otsu's official fan club. Based on the historical Hijikata Toshizō, Hijikata was originally meant to be "Gin Tama"s main character, but with his appearance being identical to the one of Gintoki.