Chopperman: Go Go! Everyone's Chopper-sensei

'Chopperman: Go Go! Everyone's Chopper-sensei' is a One Piece spin-off manga set in the Chopper Man universe. It is written and illustrated by Hirofumi Takei (武井宏文). It originally ran in Shueisha's Saikyō Jump in 2011, when the magazine was released as a quarterly extra bundled with Shonen Jump and V Jump. After Saikyō Jump became an independent monthly magazine, the series was replaced by a second Chopperman series.

Premise
Chopper is a reindeer human who works as a health teacher in a school. When one of his students is injured by the evil Dr. Usodabada, Chopper becomes the teacher of justice, Chopperman.