The Sealed Room Ôkami kakushi : Season 1 Episode 9

Sakaki tosses Hiroshi a knife before locking up the shrine. Hiroshi pressures Nemuru for answers, and she explains Jōga's secrets to him. Meanwhile, Kasai pursuades Nemuru's father to disown her and have her executed should she become a Fallen. Later, Kaname, worried now that Hiroshi is missing, overhears a conversation between Kasai and one of the Vigilance Committee members and tells Hiroshi's father that he was abducted and explains to him Jōga's secrets. Kasai poisons Shigetsu, revealing he knew about the deal with Sakaki, and leaves. Before dying, Shigetsu calls Nemuru's father and tells him of Kasai's trechery, prompting him to launch a search for Hiroshi and Nemuru. Hiroshi, despite nightmares of Nemuru attacking him, frees her, and she struggles to control herself, attempting suicide only to be stopped by Hiroshi.