After school, a female student came to pick up her forgotten belongings. All the other students had gone home, and she should have been the only one in the classroom. But there was a strange janitor-like man! Feeling an uneasy atmosphere, the girl tries to leave the classroom. But at that moment, the worst imagination becomes reality. Her body is forcibly restrained, and the man's rough thick finger is thrust into her mouth. The girl desperately tries to suppress the rising stomach acid. Of course, she can't scream. To make matters worse, dildos and catheters are shoved in, and she vomits with teary eyes... But it doesn't end there. Her innocent body is subjected to excessive irrumatio and sexual assault. Incontinence from a terror she has never experienced before... In such a state of despair, she is strangled and her consciousness becomes hazy in an oxygen-deprived state... If it were like this, it would be better to just be raped normally. Why me... I just came to pick up my forgotten belongings. That's all... Cursing her own misfortune, she wishes this time would end soon. The girl thinks so. However, the man's insane desires have no ceiling, and the hellish time continues...