Matsumoto is an elite student of the school, she is very good at sports, especially volleyball. But during a volleyball practice, the girl was forced by the coach to practice a "new lesson", which was to have sex with him.
Matsumoto is striving to become a national volleyball player, so she works hard every day to go to the multipurpose house to train. Once, while taking out her laundry clothes, she accidentally overheard the coach's secret conversation with someone, and was discovered by the coach, so he tried to silence Matsumoto. He tied her hands and feet and forced her to have sex with him, and he even took videos and photos of her to threaten her. The next day she went to the coach's office to say that she promised not to tell anyone, but as a result, the coach gave her photos of yesterday to threaten that if she didn't have sex with him, he would post it online. Disagreeing, the girl fled into the warehouse, and he chased and raped her right in the warehouse. The next time she was repeatedly raped by her coach and several other people, she had to have sex with all of them at the same time, had to suck their cocks and drink their sperm. Matsumoto's later days were like hell. Just because she accidentally saw something she shouldn't have seen, she was physically tortured to exhaustion.