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.

Characters
Chopperman, the Greatest Vigilante Dressed in his white jacket, he's usually helping children and solving the issues of the schoolchildren, but when danger arrives, he quickly dawns his superhero cape and becomes Chopperman, ally of justice and the greatest enemy of evil!

Ms. Nami, the Director Very attentive to the students of her school, though she's still very feared because of her frequent anger.

The Students Full of energy, they love Chopper, who's always ready to play with them. This group contains young versions of Buggy, Cabaji, Mohji, Shanks, Benn Beckman, Koby, Ninjin, Piiman, and Tamanegi

Dr. Usodaba, Evil Genius ''A genius with an evil spirit, he spends his time creating abominable monsters et terrifying robots to achieve his dream: Taking over the world. His madness is equal only to his cowardice.''

Dr. Usodaba's Supports Submissive servants, they're always around when Dr. Usodaba sends his monsters to attack.

Giant Luffy Bomber, Giant Robot ''Created by Dr. Usodaba, his chestplate contains devastating cannons. A cockpit is hidden inside his hat, allowing for him to be piloted.''

Robinflowan, Monstro-flower Creature put into the world by Dr. Usodaba in the hopes of getting rid of Chopperman.

Sanjirops, Obsessed Monster ''Monster created by Dr. Usodaba. Weak to feminine charms, he's still very strong against male opponents and is ruthless against anyone who interferes in his quest for love.''

Zorokiller, Rice Ball Monster ''Creature created by Dr. Usodaba. It's blades and it's gusts of salted plum pits are formidable, even for Chopperman.''