Yukka, a young college student and Yazaki Keith, a famous lead singer in the Zero Sum band thought they would spend the rest of their lives together.
But after a concert one night, Yukka is taken and gangbanged by the rest of the band members. Yukka does not tell Yazaki Keith as he seduces her again and again. However, the experience of the gangbang has aroused sexual desires within Yukka which leaves sex with Yazaki Keith unsatisfying.
Yukka is torn between her love for Yazaki Keith and her lustful desires for the rest of the band leaving her not knowing what to do.