Satsuki, a female teacher who teaches in a class on the verge of collapse. Even during class, no one tries to listen to Satsuki's words with the feeling that no one cares. Even if I consult with other teachers, they don't take me seriously. One day, when he scolded a student who was slacking off, he was attacked by a horny student. After that, the persistent harassment of Satsuki by the students accelerated, and it was only a matter of time before the class collapsed...