Naoto's mission to seed an heir continues. While he has intercourse with Ayumi, he sees a presence of his former fiance, Suzune. At first, Ayumi did not like him calling her by that name, but as her feelings towards him have grown, she grew to ignore it. At the same time, she found herself worrying about the possibility that her other two sisters might win his heart and steal him away. The ceremony draws closer and Naoto does not have much time left. Who will he end up choosing and will he succeed in impregnating one of the girls with his successor?