I felt really sorry for Banri. His explanation of amnesia really made me see it in a different light. He was afraid he would disappoint everyone because he was no longer the same person. That is indeed extremely lonely and scary. Even people trying to be mindful of his condition will trigger such a reaction from him.

Kouko (not Koko) really needs to forget Mitsuo. Banri and her have a much better combination going. I would have rooted for the pairing had it not been blatantly declared by the OP.

I think that other girl with the strange hair colour is deplorable. I dunno, but I think she is the pretend to be cute but is actually an ass type of person.