A female teacher who was estranged from students because of her rigor. The students who had a bad class attitude were arrogant, suggesting that they would repeat a year with a proud attitude. However, one day, the situation changed completely when a student witnessed sexual intercourse with a colleague. Every day I became a meat urinal for students to get forgiveness, and I was struck by a ring and overrun my throat. They distort their faces with sobs and tears and ask for forgiveness, but their sanctions do not end. She accepts the students' meat sticks endlessly without knowing when it will end ...