Manga I’m trying to find is about a meek teacher who starts working at a high school and a martial artist girl in Chinese clothes (like Ranma, I think she even has a ponytail) that has a crush on him. There’s also a nerdy girl that’s a yandere for the teacher and also an Utena/Hinagiku (from Hayate no Gotoku) type character that fights the main girl at some point. I can’t remember the name but I remember spirals being a part of it somehow...