Can someone please tell me what went on between the teacher and noriko? like they were in a relationship? and…
honestly they weren't in a relationship, he was infatuated with her because she was the only student who was nice and 'pure' to him and even took the knife away from nobu and hid it behind her so the teacher wouldn't see. he wanted her to win and would go out of his way to help her. thats just my interpretation though.