Demon Panic

Demon Panic is an anime that focuses around a 2nd year student from Demon Eliminator Academy named Izumi Yoshida, a 17yr old girl that used to be a boy called Ryo Yukimura, until he was accidently turned into a girl by Ayumi Tsukino through a misunderstanding. There's nothing normal about this school that trains students in hunting demons. Izumi's life will never be the same.