The 10-year-old Rebecca Miyamoto becomes the new teacher of a classroom full of weirdos. Despite her cute looks she is a little beast and can be pretty sarcastic and offensive. The school is not safe any more now that she is in charge of a class and her students, Himeko, Ichijou, Rei and Mesousa a white rabbit who took a liking to Rebecca help her to rough up the school and the neighbouring class with its teacher ojii-chan.
