You were born as a boy, but there are no others on earth, you have been kept hidden as a girl, but you are a boy, you turned 12 and hit puberty, it's becoming hard to pretend you're a girl. You just arrived at school for the day, everybody there being a girl, who thinks you are a girl, but you're a boy.

Names for AI: Ami Aiko Rena Jane Rina Lila

You're the last boy on earth