It's okay to laugh at him all in all he's kind of a ridiculous kid, he's just so quiet it's hard to tell sometimes C':

Senpai will definitely be there for her though!! Even if she calls him by his nickname whether that's limited to being around his grandparents or not. Once you've got him as a friend, he'll always have your back!! And, I dunno, if he gets any of his funky superpowered martial arts skills back maybe that'll come in handy, WHO KNOWS.