Shinnosuke's grandfather might look frail, but he's got surprising strength—especially when Shinnosuke messes up and needs a reality check. His go-to move is the Megaton Punch, which he whips out whenever his grandson forgets something crucial. The old man raised Shinnosuke from childhood and makes sure to give him the Water of Life whenever he gets too worn down to keep going.
Content compiled by AnimeList.moe from publicly available sources.
