A Troubled Cat and Composure.When Himari comes to her senses following her battle with Ageha, she sees a naked Shizuku rubbing her body against Yuto to her shock, only to learn she is only healing his wound with her water, and Shizuku scolds Himari on her inability to protect Yuto. Back at the house, Shizuku explains to him and Rinko about the Demon Slayers and the Amakawa’s Light Ferry ability. Shizuku also reveals to Yuto that Himari's ancestors once killed and consumed humans, and warns him that Himari will be more prone to reverting to her kind's natural instincts should she keep fighting. Later, on their way back to the house, Yuto thanks Himari for making him remember his past and tells her about the kiss on the lake, thinking that the girl at the lake might be her. However, Himari tells him that the first time she appeared as a human was on the day of his 16th birthday, leaving Yuto puzzled about the girl's identity. Later on, Yuto trains with Shizuku at a nearby park in an attempt to awaken his Light Ferry ability but is beaten easily. In an attempt to train his composure, Shizuku calls Liz and Rinko over, with Liz flirting with Yuto to Rinko's anger. However, the composure training soon turns into an out-of-control harem act and a fight for Yuto's kiss until an enraged Himari appears, which leads to her smothering his face with her breasts while triggering his allergies. The next day during their walk home after school, a mysterious white-haired girl appears and introduces herself as the Demon Slayer of the Jinguji Family: Kuesu.