INFERNO.Aoki divorces from his wife so that she will not get involved with the upcoming battles. As Yūto arranges Aoki's papers, both arrange for a fight. Karen hears their conversation and invites Aoki to her house. Meanwhile, Nataku learns from Satsuki that he was cloned after his creator's granddaughter, and Kanoe makes him a request. Karen drugs Aoki to make him sleep and go in his place, stating that if she dies nobody will cry. At the area, Karen meets Nataku who replaced Yūto and both battle. When Karen overpowers him, she identifies herself with Nataku as he is not afraid of dying. Karen remembers her mother considered her a demon for manipulating fire, and after her dead, a priest encouraged her not to think that. Yūto then attacks Karen, trying drown her with his water. A tired Aoki comes to her aid, and Yūto decides to postpone their battle. Before falling unconscious again, Aoki tells Karen he will cry if she dies.