"I wonder if this teacher will break?" Takahashi, a student who is top of his class in grades and has no problems with his behavior, feels dissatisfied with the current situation. He was bored because he could do everything perfectly. So, to relieve his boredom, he started making teachers his toys. The teachers who were targeted by him stopped coming to school within a few days and ended up quitting. The next target was Mayumi Komiya, who had been a teacher for two years.
