A trio of beautiful sisters, a boy, and a childhood friend who have a strong bond. A gap arises in their feelings for each other, and a terrible nightmare begins! Her sister, Ai, confessed her love for Mutsuto, and it seemed that pure love had been fulfilled. However, Mutsuto continued to think of her older sister, Honoka. In order to get what each other wants, the three become immersed in a perverted love triangle.
