She was a pretty girl you might find in any town. Most people would look and see an innocent. Not one guy. One guy imagined her begging, tearful face and got aroused. He didn’t even realize how deep his sadist desires went. He began to stalk her. He looked for anything to feed the fantasy that she was a dirty whore. A justification. And then, a single DVD arrived in the mail. The DVD was a secret gathering in the home of a wealthy family, where adults helped themselves to a young girl. The young girl was Sayaka. The sex was rougher than anything he’d ever seen. Several days later, the person who sent the DVD made a request. “I know who you are. I want an amateur with your sort of perverse interests to do some training.” A drug was provided. It was a drug used to make the gathering video. Sayaka lived for it. She existed to taste it. Her hunger for the drug made her beg and plead… The desire that marinated his sadist heart now aimed at her. (Source: dlsite)

They wake up in a white room remembering nothing— The protagonist Takato Keisuke and 6 others are locked up in these hidden white rooms. His childhood friend Hokari Kanae, classmate Ando Miyako, underclassmate Mikaba Rika, English teacher Aoi Natsuki, same year Byakuya Rinne, and classmate Manaka Nemu. While still confused about their unusual situation, a “mystery voice” suddenly speaks to them: “A game has now started. In order to escape the room, Keisuke is the “unlocker” and one heroine the “keyhole”. With an assigned act, he must “use the key”. After hearing the unreasonable and immoral requirements to win, Miyako gets pissed and snaps on the “mystery voice”. Suddenly the lights go out. The girls scream. The lights come back on, reilluminating the white room. They can see Miyako bound to a grotesque torture device. “Anyone who quits the game will die.” Her screaming begins in tandem with the electrical current. With eyes wide open in fear, she pisses and shits herself. Everyone else starts freaking out. However, Keisuke seemed to be getting aroused by Miyako’s appearance. That was his secret, his urge to assault and humiliate girls. However, Nemu could see right through him and knew. Nemu takes advantage, forcing the protagonist to submit to him as she brings her lips up to his: “This is a contract kiss.” Keisuke was surprised by Nemu’s behavior but he wants to protect Kanae and decides for the sake of escaping, he will violate the others. Can Keisuke escape the white rooms and return to his normal life? Or will he hold back his own dark urges?