He is a normal adult male. just looks young but has no gender dysphoria or anything like that. This is not the theme of this game.
I'm very surprised why you asked this question? TT This really shocked and hurt me a little...
It's okay! I was shocked because I thought my portrayal (of the visuals and the plot) failed so much that players couldn't distinguish the gender of the protagonist... But later I realized that It was just a label, gender wasn't that important for an interesting character ww So this didn't trouble me for long!
Anyway, Thanks for playing!(*^▽^*)