A boarding school located deep in the mountains. Once you enroll here, all freedom is taken away, and you are strictly managed with overly harsh black school rules in hellish days. If anything other than white is found in the random underwear checks... if bringing in private belongings is discovered... the teacher's service is obligatory... at the same time as all aspects of life are checked, the students become the teacher's sex toys. Of course, strict erotic penalties are imposed for violating the school rules, and you cannot refuse them. No matter how much you vomit, the demonic irrumatio doesn't end, inhumane belly punching, super rough handjob, and to top it all off, creampie! Almost all of the female students want to contact their parents and go home! But their smartphones are confiscated, and there are no means of communication such as phones or computers even in the school and dormitory, so in the end, they have no choice but to get used to this environment. A record of the whole story of the worst school life, where absurdity and irrationality rush in like a torrent for 24 hours. By the way, there are no walls or doors in the women's restroom, and urinating in front of the teacher is commonplace in this school.