Koyomi Araragi begins the day by being rudely awoken by his sister, Tsukihi. He decides to discuss love with her, asking how one can tell if they are in love or not. It turns out that recently, he can't stop thinking about his classmate, Hanekawa Tsubasa. Later, he runs into Hanekawa, who reveals a shocking fact which he may not tell anyone else about.

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, initially ignoring Oshino's warning not to involve himself any further in this incident, visits Hanekawa's house and is shocked by what he finds. He returns home and convinces his sisters not to involve themselves in the Curse Cat incident either. A few days pass and Hanekawa is still nowhere to be found. Araragi returns to Oshino to find him severely injured from his numerous encounters with the Curse Cat. Later, Araragi manges to find and talk to the Curse Cat occupying Hanekawa. Calmer and less violent now, she tells him to leave her to her own devices in order to relieve her master's stress.

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

Worrying about Tsubasa Hanekawa as she lost a home to return to, Hitagi Senjyogahara allows the girl to spend the night at her place. Tsubasa eats a meal prepared by Hitagi and wakes up together with her.

Tsubasa determined the identity of the giant tiger apparition “Kako,” and writes one long letter. The letter was addressed to Black Hanekawa, the apparition that could be described as her other personality.

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.

Shinobu Oshino realizes that humanity had turned into zombies thanks to the powers of Kiss-shot. Koyomi Araragi shoots up fireworks as an SOS signal, but instead they are surrounded by zombies. However, an unexpected individual arrives at the scene...

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.”

On January 1st, Hitagi Senjyogahara makes a phone call to Deishu Kaiki, her supposed archnemesis. It was a tough decision made on her part, in order to save herself and Koyomi Araragi from their “death sentence.”

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.