The protagonist enjoys the pleasure of a woman's body while wearing a female body skin that he accidentally finds at the hospital. However, the situation changes when he comes across a suspicious mask! It is a cursed mask that houses the personality of a super villain. A woman's voice echoes in his head. The fear of being taken over in both body and Kokoro. The pleasure of disguising himself as a woman and assaulting his childhood friend! What will become of the protagonist, who is at the mercy of the dual personality of the skin and the mask?