Two years have passed since Yumi lost her husband in an accident. Although her Kokoro wounds have healed, her nephew Ataru, understanding her feelings, would come to visit her whenever he had the chance, so she didn't feel lonely. One day, Ataru saw her having an affair with Terazawa, who was one of Yumi's subordinates. Since then, Yumi felt something tingling inside her as she saw the resemblance of her late husband in Ataru, who was conscious of her as a woman. From then on, it became her secret pleasure to stimulate Ataru's lust and get him excited every time he came over...