Rio and Mamoru, childhood friends. Although they know each other’s feelings, their unclear and ambiguous relationship leads them to despair. Rio finds herself involved in idol activities after accidentally participating in a beauty pageant. Mamoru is warned that Rio is a prize for “Sacrifice,” a way for the powerful and black-hearted to pass the time. To protect Rio, she decides to get involved as a part-time participant, but is unable to tell him her true situation. He was exposed to her confusion and suspicion, but he did everything he could to protect her, that’s all. However, the reality Mamoru faces is a scene she neither wants to believe nor see. With a desperate cry, a naked Rio holds out her hand for help. Mamoru can’t hold that hand…