Chisato Shoda remarried into a family where, unlike her musician husband, three strict and conservative brothers awaited. On the surface, they appeared innocent and kind, but secretly harbored insatiable, perverted desires. Whenever her husband was away, Chisato found herself drawn into intense, repeated encounters with the brothers. A woman who loves sex, Chisato quickly fell under the spell of the deviant siblings, passionately indulging in wild, relentless intercourse as if dancing wildly in ecstasy.