Yumiko is a school girl wanting revenge for her best friend recording her being gang-raped. So now she aims to rape every single friend her former best friend ever had. (Source: ANN)

In the girls dormitory of Shukusei Music Academy are the famous daughters of good families. In the middle of the night, the girl's screams echo in the silent academy. Kaori is tied up and at that moment she becomes baptized into disgrace. There is a man whose name is Kato Shusaku who looks down at her with a fiendish grin as she cries in misery... (Source: ANN)

Kotomi was looking forward to a fun summer vacation. Until she found the note in her bedroom. Filled with extremely personal and revealing information about her, Kotomi is forced to follow the note's instructions and go to the old school building. Once there, she discovers that she's not the only one. Many of her classmates including the headstrong Miyuki are also there. But when everyone is suddenly trapped inside the building and girls start disappearing, it's only the beginning of the nightmare. A tale of violence, perversion and lust, filled with hardcore sex and unusual sexual fetishes!

Events of the original 3 episodes are being retold by Aya.