Axel was the perfect teacher, always kind to his students. The thing that no one knew though... was that he and Yui, a very bad student,always bullying others,had gotten engaged against the school rules: no relationship between students and teachers. That morning,Yui was bullying a younger student with his other frends,who punched the young student to the ground in the corridors,while some other students were pooking at the scene not knowing what do to,they called teachers to stop that scene..