The woman who married into the Yasuda family begins using her body as a weapon to express an abnormal kind of love, starting from a certain day. The feelings she harbors are not mere romance, but evolve into a deep, twisted obsession. Her husband and family are shocked and bewildered by this change. Her actions grow powerful enough to threaten their everyday lives, dragging everyone around her into chaos. This is a shocking story that challenges the very nature and limits of love.