Yu is a talented female teacher who spends her days fulfilling both professionally and privately. Rumors circulated that she would retire after her students saw her walking down the street with a man on her day off. One day, she goes to school as usual and witnesses the scene of bullying on the way up the stairs to her classroom. However, at this time, Yu didn't even realize that this bullying was caused by Yu... Because she is beautiful, and because she was happy, Yu is violently raped and gang-raped by her students...
