At a certain commercial school with a low ratio of female students, an annual trip to a forest school is held to foster camaraderie and divide into small groups. The purpose is to engage in outdoor learning through hiking and mountain climbing, but male students sensitive to sex commit sexual crimes as a prank. This is the most frequent recording of that year. In #01, a black-haired girl and a seemingly quiet, serious girl are made to feel unwell with sleeping pills and their bodies are molested; a tall girl and a girl with multiple piercings who seems like a troublemaker, as well as a serious girl like the student council president, are made to sleep from behind with a handkerchief containing chloroform, and are thoroughly violated, even ejaculating inside them with a calm face. A total of 5 people are recorded.
