I have a secret... even though I'm a girl, I have a penis." Nana Miyachi harbors a shameful secret: despite her feminine appearance, she possesses a massive member. One day, while secretly indulging in her school swimsuit fetish, she is discovered by Shizuku Morino, the beautiful girl she admires. Shizuku reveals a sadistic streak, teasing Nana until she confesses her deepest fantasies. However, a stunning revelation follows: Shizuku hides a secret of her own between her legs. The two girls begin to explore their mutual desires, stroking each other as they turn their forbidden fantasies into reality. A strange and erotic love story between two uniquely gifted girls.