Hankon

"I don't know which will come first, to stop being a teacher or your mind and body to stop working..." Nishiya is a teacher who works with the goal of being considerate to his students, but in the long working hours, complaints from parents, disobedient students and those days... He regrets choosing this path, never cease to torment him. Just at that time, crimes of cat murders occur in the area. Among the parents, it is rumored that the culprit of the crimes is a new student named Hayasaka.