Hanekawa encounters a massive, supernatural tiger on her way to school and later on sees her house burning down. With Araragi away, she teams up with Senjougahara to find out what happened, and thus a new batch of Monogatari stories begins.
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. Embarrassed 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 a 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 middle schoolers he formerly deceived, possibly the one who cursed Nadeko, and before he passes out he hears Ougi's name, implying that he was sent by her. As Kaiki is losing consciousness, the middle schooler stabbed him once again.
Kaiki learns from Tsubasa that strange phenomena have been happening in the town even before Shinobu arrived and because of that, Gaen was intending to have her become the new god of the Polar Shrine. However, because of Koyomi's interference, her plans have failed and Nadeko turned into a god instead. Tsubasa believes that Nadeko actually does not care about anything or anybody at all, and most likely doesn't really love "Big Brother Koyomi", thus the reason for her behavior. She is also worried if Kaiki is able to pull off the scam. On the occasion, Tsubasa asks Kaiki if Oshino has any relatives like a niece and he affirms that just like him, Oshino does not have a family at all, including siblings or such, making the existence of Ougi Oshino very suspicious. Through the following days, Kaiki keeps visiting Nadeko to play with her and bring her presents until the day of Koyomi and Hitagi's graduation finally arrives. After having a final conversation with Hitagi by phone, during which she demands him to never set foot in the city again once the job is done, Kaiki has a short meeting with Yotsugi on the way to the shrine. She repeats her warning and claims Kaiki won't be able to deceive Nadeko. On the occasion, it is revealed that Kaiki used his wits to bring down a cult that was deceiving Hitagi's mother but that ultimately led her to join another cult instead and for Hitagi's sake, he had her mother divorce and leave her family. Upon meeting Nadeko at the shrine, Kaiki attempts to deceive her as planned by claiming that Koyomi, Hitagi and Shinobu were killed in a traffic accident in the previous night, however, she instantly recognizes the lie.