Reiko Koizumi, who finds pleasure in ruthlessly taking away what other people hold dear, wishes to seducing her younger sister's husband, who is at the peak of happiness after giving birth to a long-awaited child. Unaware of the impending collapse of their family, one day the younger sister goes to a friend's wedding and leaves her husband behind... Beautiful flowers are poisonous. The erotic daily life of the evil woman Sexual Rouge!!