Later, Araragi meets up with Oshino Meme, who quizzes him about Hanekawa. He reveals everything except the secret he was sworn not to tell, including finding and burying a silver cat with no tail. From this, Oshino warns that Hanekawa may have been possessed by an Oddity, the Curse Cat. He instructs Araragi to find Hanekawa, whilst he looks for the shallow grave they dug for the silver cat. Araragi finds Hanekawa, but things then take a turn for the worse...

Araragi begs Shinobu for her help, which she eventually provides. He then formulates a plan to confront the Curse Cat and save Hanekawa.

Suruga Kanbaru, an underclassman, came to visit Tsubasa Hanekawa now that she has resumed attending school. Apparently, Koyomi Araragi has asked for Suruga's presence tonight. Tsubasa returned to Hitagi's house without knowing what was going on.

A recap episode retalling the events of Nekomonogatari (Kuro), narrated by Koyomi. On the first day of Golden Week, Koyomi Araragi, together with Tsubasa Hanekawa, buries a tailless cat that was ran over by a car. A supposedly petty and commonplace event. However, the curtain rises on the “nine days of hell" that follow.

Koyomi and Shinobu unexpectedly time warped back to May 13th 11 years ago. Koyomi thinks of saving Mayoi Hachikuji, who was “destined to become a ghost after getting into a traffic accident on her way to see her mother the next day – Mother's Day."

Nadeko spent the evening at the Araragi residence after Koyomi mistakes her for running away from home and takes her back to his place. The next morning, she talks to Koyomi's younger sister Tsukihi, a friend from back in grade school.

Koyomi returned from the time warp with Shinobu. From North Shirahebi Shrine, he headed home together with Mayoi Hachikuji and returned her backpack to her. However, right afterwards, the two of them are assaulted by a mysterious “Darkness.”

Koyomi finishes hearing the story about 400 years ago from Shinobu. Yotsugi joins them at the spot, and Mayoi wakes up from her slumber. The four of them were talking within the cram school ruins, but the “darkness” appears a second time at that location.

Tsubasa Hanekawa, supposedly overseas in search of Meme Oshino, suddenly approached Kaiki to talk to him. After exchanging information with Tsubasa, Kaiki gets the finishing touches ready for his preparations to deceive Nadeko the snake god.

Kaiki proceeds to deceive Nadeko Sengoku. However, Nadeko with surprising ease sees through Kaiki's lies and attacks with numerous white snakes. What will be coming last out of the tongue of a con artist near death–a lie, or the truth?

After the graduation of Araragi and Senjougahara, Suruga alone to deal with her left hand that has been turned monsterous from her mother's monkey paw charm. After hearing rumors of a "Devil" that can solve one's problems no matter what, Suruga set out to find this person.

After having her hand healed, Suruga has many questions for her former classmate Rouka. She was unable to contact her, however a meeting with Keiki Deshu, who seems to have survived the attack from the previous season, answers some questions of hers.

Suruga realizes that the collector is in fact Rouka, and she has been collecting parts of the "devil" as she feeds off the misfortune of others. Her motives are questionable...

Rouka challenges Suruga to a one-on-one basketball match as the two discuss the events that led up to their collection of their respective "devil" parts. Suruga is still coming to terms with the ability to use her left arm again.

Upon finding the Demon's head, she meets Rouka once again. Instead of giving the head to Rouka, she refuses. She is unable to stand the sight of her because of the fact that she can see her as she is a ghost. Suruga then challenges Rouka to one-on-one basketball in a wager for the head if Suruga loses.

Koyomi Araragi and Shinobu Oshino discuss the true nature of Shikigami doll Yotsugi Ononoki, and Koyomi is being rudely woken up by his sisters who tell him to cram for his upcoming college entrance exams.

Koyomi Araragi sees that he has no reflection, and discusses this with Shinobu. She then suggests that Koyomi should see Yozuru Kagenui and Yotsugi Ononoki.

When Yotsugi tells Koyomi that he is indeed becoming a vampire, Koyomi reasons that using his vampiric powers must have come with a price. Yozuru tells him that while there is no way to undo the progress of his transformation, there is a way he can stop it from progressing further: he must no longer use his powers as a vampire. However, this turns out to be quite a challenge when he learns his sisters and Suraga have been kidnapped.

Koyomi and Yotsugi land at the base of the mountain, where they are surprisingly met by Ougi Oshino. She talks with Koyomi for a while about his current situation and his upcoming confrontation with Teori. Koyomi and Yotsugi begin their journey up the mountain.

Mayoi takes Koyomi to meet Teori, who offers him a way to return to the world of the living. Koyomi is in doubt about accepting his offer, as he believes others like Mayoi are more worthy of reviving than him, until he comes with a surprising decision.

Gaen assembles Koyomi, Shinobu, Mayoi and Yozuru and reveals that Ougi is the responsible for some of the previous ordeals they faced.

To stop Ougi from meddling further, Koyomi has a final confrontation with her.