An erotic horror depicting a high school girl tormented by the ability to stop time and uncontrollable sexual desire.

Yuki Minami, a bundle of inferiority complex, gained the ability to stop time in exchange for overflowing sexual desire. With the university entrance exams approaching and to build smooth relationships with classmates, Minami needed time. Every time time is stopped, the value of the "lust counter" engraved on the skin increases. To satisfy that tremendous sexual desire, Minami spends her days in debauchery, entrusting her body to her childhood friend, Kaburagi Shinichi. While Minami's life begins to take on color through her time-stopping ability, her heart is gradually tainted black...

Shun is a transfer student who can't seem to adjust to his new class and falls into mild depression. However, one day he meets some fellow students by chance in front of a creepy Western-style mansion called the "Jailhouse" which is rumored to be home to a hideous blue monster. Soon, the group of six students, led by Shun and Anna, become trapped inside and desperately attempt to escape before the monster finds them.