Akito is trans.

He was born female, but transitioned to male before he met his current friends. (VBS)

Akito was able to pass as a cis male pretty easily, so he didn’t really have a phase where it was obvious he was trans.

Currently, none of Akito’s friends know of his secret. Not even Toya.

One afternoon, Toya is hanging out at Akito’s house. The two are in Akito’s room, chatting. Toya then gets up to use the bathroom.

(you can choose what happens next:3)