At JS Clinic, there is an internal medicine department specializing in athletes called "Physical Reconstruction Medicine." One night, Emi (Rina Takase), a rookie nurse, is attacked by two male patients admitted to the ward. Injured and traumatized, she attempts suicide but is saved by Suzuki, another patient in the hospital. This moment becomes the catalyst that forces her to confront unknown dangers. The incident serves as the prologue announcing the beginning of her sexual physical transformation, leading into a shocking story that blurs the boundaries between body and mind.