High school student Koyomi Araragi survived a vampire attack and can’t stop getting mixed up with all kinds of apparitions—but he’s about to face his biggest challenge yet: protecting his two little sisters! Karen and Tsukihi have a penchant for justice, and it’s up to Koyomi to keep them safe as they track down the cause of their apparitions.
Episodes
Episode 1
Karen Bee (1)
January 8, 201225m7.0
The five girls' problems with supernatural beings have been solved, and it's now summer break, with the culture fair over. Koyomi Araragi has two little sisters, self-proclaimed "heroes" nicknamed the Fire Sisters, Karen and Tsukihi.
Episode 2
Karen Bee (2)
January 15, 201225m5.7
Temptation haunts Koyomi, while visiting Sengoku he is presented with several tempting offers. After surviving each one, his visit to Kanbaru continues to put him in compromising situations.
Episode 3
Karen Bee (3)
January 22, 201225m7.1
Araragi leaves Kanbaru's house and meets a dangerous man named Kaiki. While following him, he runs into Senjougahara, who berates him for skipping his studies.
Episode 4
Karen Bee (4)
January 29, 201225m6.2
Karen is badly ill, having been poisoned by an evil, supernatural bee. Will Koyomi be able to cure her in time?
Episode 5
Karen Bee (5)
February 5, 201225m7.5
Koyomi learns the whole story about what happened between Karen and Kaiki. After receiving a tempting offer from Hanekawa, he speaks with Shinobu on the way to save Karen.
Episode 6
Karen Bee (6)
February 12, 201225m7.5
Koyomi leaves Karen behind at home to talk with Senjougahara. Senjougahara seems to be planning on confronting and murdering Kaiki. When he comes back home, he learns Karen has wandered off, while still sick.
Episode 7
Karen Bee (7)
February 19, 201225m6.1
Araragi goes to confront Kaiki and stop him from leaving the city. But Kaiki is wiley and smart, and not easily dissuaded when there's money on the line.
Episode 8
Tsukihi Phoenix (1)
February 26, 201225m5.2
Karen is acting clingy and very cute, completely out of character. But its a trick to get Koyomi to introduce her to Kanbaru. In response, he devises a test Karen must pass; a test involving her toothbrush.
Episode 9
Tsukihi Phoenix (2)
March 4, 201225m6.2
While taking Karen to meet Kanbaru, Araragi is put into a compromising position. On the way, he runs into someone asking about familiar things.
Episode 10
Tsukihi Phoenix (3)
March 11, 201225m7.0
Araragi agrees to take Shinobu on a trip to buy doughnuts. At the restaurant, an old acquaintance is able to give information on the town's new visitors.
Episode 11
Tsukihi Phoenix (4)
March 18, 201225m7.8
As Shinobu explains how Tsukihi came to be in her currents situation. Araragi resolves to stop the out-of-towners from killing her. But unlike Oshino and Kaiki, Kagenui speaks with her fist and she talks a lot.