This is the story of the main character who ends up living in a house with three step-sisters: "Misa," the oldest, a bitch who pretends to be calm, "Rin," the second, who looks naughty but is actually a whore, and "Mei," the third, who is a paranoid M girl. Drawn in by the unbelievably low rent, they are happy to move in, but there is a secret to the house. The three setp-sisters are succubus, demons that attract men and use their semen as their own food! Note: There is no sex scene with the second step-sister "Rin" in this film.