Koushuu comes as a package deal with Eijun, and is also really good friends with Yoshiko who is the aforementioned OBSESSED WITH WRESTLING friend but also there's Kuramochi, so many friends are into wrestling, why, what is the appeal.

But he wouldn't tell Ayano that it wasn't real so there's that.

Anyways he's the grumpy straight man to Eijun's enthusiastic ... everything, and he helped put together a study group with a few other people to help the friends he has that are n...ot... so great at school things SO IF SHE WANTS IN ON THAT!