Based on the game by M no Violet.

The elite doctor Kuwabara Souichirou couldn't forget his feelings towards Nanase Ren, whom he previously loved in their youth. He changed the hospitals he worked at, one after another, to watch out for her, and lastly he met her again at the St. Cattleya Hospital. However, her attitude was remote with his fantastic love couldn't be fulfilled. To make matters worse, he received photographs depicting Ren being molested.

Ren ended up converted into a lewd woman by Hirasaka over the woman body experiment when she what food was in the St. Julianna Hospital. He was disappointed and he lost his mind. Kazama Mana, who had been a nurse with the gynecology and obstetrics section, loved Kuwabara, and he or she resembled Ren. Using her feelings, Kuwabara raped her and took her virginity while shouting the Ren.