In a white room, Takato Keisuke and six other individuals find themselves locked up with no memory of how they got there. The "mystery voice" informs them that they must play a game in order to escape. Keisuke is designated as the "unlocker," while one heroine serves as the "keyhole." With an assigned task, he must use the key to unlock the door. However, the requirements to win are unreasonable and immoral, causing Miyako to become enraged and snap on the voice. The lights then go out, and when they come back on, Miyako is bound to a grotesque torture device. Anyone who quits the game will die. Miyako's screaming begins in tandem with an electrical current, and she defecates herself in fear. The others become frightened, but Keisuke seems to be getting turned on by Miyako's appearance. Nemu takes advantage of this situation and forces Keisuke to submit to him through a contract kiss. Surprised but determined to protect Kanae and escape, Keisuke decides to violate the others in order to fulfill his task. Will he be able to overcome his dark urges and successfully escape the white rooms?