Episode 23: Hitagi End - Part 6

Kaiki realizes that he failed to deceive Nadeko because she never trusted him at all, and because she was previously deceived by Ougi into claiming the charm and becoming a god. Nadeko unleashes a swarm of snakes onto the entire Polar Snake Shrine, immobilizing Kaiki. Believing that he was sent by Koyomi, she contemplates killing his sisters, Kanbaru, Hanekawa and Mayoi as well to punish him, until Kaiki reveals that he found out her secret aspiration to become a manga artist, as many drawings were hidden in her private closet. Embarassed for having her secret revealed, Nadeko starts punching and kicking Kaiki as he tries to persuade her. He claims that eventually her parents will open the closet as well and find out about her secret, unless she renounces her godhood and returns home. After convincing her that she should forget about Koyomi entirely and pursue her true ambitions instead, she agrees to get deceived again. Kaiki implants a fake slug apparition into her body to have her uncounscious during the exorcism, but he's interrupted by Koyomi rushing into the shrine. Claiming that he was sent by Gaen as a professional to deal with Nadeko, Kaiki extracts the snake charm from her body and returns it to him. Kaiki also instructs Koyomi to cut all connections with Nadeko for her sake, as she must move on with her life by herself - his relationship and romance with her would only make her an useless human being. After calling Hitagi and confirming that his job is done, Kaiki bids farewell to her and realizes that the secret message at his hotel was sent by no other than Hitagi herself, as she knew it would have him push further with his job instead of discouraging him, and Gaen's message to him probably was for the same purpose. As he leaves the city, Kaiki is ambushed and mortally wounded by one of the boys he formerly deceived, possibly the one who cursed Nadeko, and before he passes away he hears Ougi's name, implying that he was sent by her.