The protagonist Takatou Keisuke finds himself trapped in a mystrious sealed white room. With him is childhood friend Hokari Kanae, class chairman Andou Miyako, junior Makiba Rika, English teacher Aoi Natsuki, and his fellow classmates Byakuya Rinne and Manaka Nemu.

A mysterious voice breaks over the speaker declaring, "The game is about to start." In order for them to escape they must play this game where the Takutou Keisuke is the “key”, the six ladies are the “keyhole” and that they have to perform specified unreasonable, radical, and immoral sex acts to “unlock” their freedom.

With the loss of the class chairman Andou Miyako to electrocution and classmate Manaka Nemu's deflowering in bondage play, protagonist Takutou Keisuke now chooses childhood friend Hokari Kanae as the next "keyhole" to "unlock". What he doesn't know is the hellish play that will unfold.

The depravity of each progressive game unfolds a lurking dark desire in Takutou Keisuke as the other ladies watch him employs scat play, nose hooks, and electric shock play.

Will protagonist Takutou Keisuke be able to satisfy his desire to humiliate and dominate his childhood friend Hokari Kanae?

Show Overview: They wake up in a white room remembering nothing.

The protagonist Takatou Keisuke and 6 others are locked up in these hidden white rooms. His childhood friend Hokari Kanae, classmate Andou Miyako, underclassmate Makiba 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".

Show Overview: They wake up in a white room remembering nothing.

The protagonist Takatou Keisuke and 6 others are locked up in these hidden white rooms. His childhood friend Hokari Kanae, classmate Andou Miyako, underclassmate Makiba 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".

Show Overview: They wake up in a white room remembering nothing.

The protagonist Takatou Keisuke and 6 others are locked up in these hidden white rooms. His childhood friend Hokari Kanae, classmate Andou Miyako, underclassmate Makiba 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".