At Hitagi Senjyogahara's discretion, Hanekawa Tsubasa ends up living under the roof of the Araragi residence. Spending an evening in Koyomi's house, Tsubasa realizes that she had turned into Black Hanekawa the previous night.

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 and company climbed down the mountain they were hiding in after escaping from the “darkness." Upon visiting a village between the mountains, they meet Izuko Gaen and receive an explanation concerning the “darkness.”

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.

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.

March 13th, the morning of college entrance exams. Koyomi Araragi has died due to Izuko Gaen. Mayoi Hachikuji was waiting for him in the afterlife, and guides him towards an unknown destination. Koyomi would have never thought that this certain someone would be waiting for him there.

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.