Jun visits a hospital seeking treatment for her enlarged clitoris. Female doctor Sawako gives her a placebo, which Jun believes and takes without suspicion. The next morning, Jun discovers her clitoris has grown even larger, and becomes fascinated by its strange transformation. She begins to pleasure herself with it, eventually reaching ejaculation. Jun now possesses a body equipped with two sex organs, and at the same time, develops a strong attraction toward Doctor Sawako. Sawako, intrigued by Jun's hermaphroditic body, reciprocates her desire, and the two deepen their relationship in pursuit of pleasure. The third installment in the series brings bold new developments.