Fandom: Danganronpa

This may be a bit unconventional, but hear me out.

Izuru Kamakura is the embodiment of all talents and is therefore the Ultimate Hope, yes?

Hope itself is a concept not attached to a gender. Along with that, Izuru shows no signs of gender preference in the anime or the video game.

Because of that, I have a theory that Izuru is not binary in terms of gender, but because of his apathetic nature, he doesn't really care how people see him and thus uses the pronouns that Hajime used because he already had a bit of familiarity with them due to Hajime's influence (it is nearly confirmed that Izuru has some connection to Hajime given that he cried when Chiaki died in front of him).