Water Gun (ミズテッボウ, Mizutebbou) is a C-Class hero for the Hero Association.


Water Gun is a young man wearing a black wet suit, goggles and a white swim cap with the kanji for "water" (水, Mizu) on it


Human Monster SagaEdit

Super Fight ArcEdit

Water Gun is encountered by Saitama and tells him that he was defeated and that the monsters had left 30 minutes prior.[1]

Abilities and PowersEdit

As a C-Class hero, it can be assumed that Water Gun isn't a very powerful individual. Since his rank is unknown, it is unknown how he compares to other heroes in his class.


Water Gun: His titular weapon. It could be presumed this makes him effective against fires and fire-based monsters, though his C-Class level suggests otherwise.


  1. One-Punch Man Manga; Chapter 76, page 12-13