ritsume's sister-in-law, Yoko Nakamori, who is awakened by her older sister, Lez, and the younger sister.

One day, his sister-in-law, Ayako, came to stay. Although she enjoyed reunion with her sister-in-law, Yumi, she fell ill and fell asleep for a while. Yumi takes care of such a lion with dedication to eating rice cakes, but gradually the desire that she had in her body began to wake up. Then he kissed the wet lips of sleeping lions and dragged his jealous sister-in-law into the world of lesbian lesbians.