Thread:RABNerd VP/@comment-28245851-20190304132856/@comment-28245851-20190304232739

Almost none of the Danganronpa characters have canon ages, despite what a lot of people say, but most of them in the games are more or less under 18. The only exception in the games is Yasuhiro Hagakure who states he is 20, and Komaru Naegi who in the art book is said to be "one year younger than her brother Makoto Naegi" but no actual ages given.

But either way we always err on the side of caution to avoid getting in trouble with FANDOM.