Nisemonogatari

Synopsis

Shinobu asks Koyomi to take her to the donuts shop. Before leaving, he notices that Tsukihi's scar on her chest was healed, and after stripping her naked, finds that all other scars on her body disappeared too. At the shop, Koyomi asks Shinobu if she knew anything about Yotsugi or Yozuru, but much to his surprise, he finds Kaiki sitting on a nearby table and pays him up for information about them. Kaiki reveals that Yozuru and her familiar Yotsugi are supernatural hunters specialized in immortal beings. Wondering if he or Shinobu may be targeted by them, Koyomi returns home just to find both in front of it. When Tsukihi opens the door for them, Yotsugi instantly attacks her, tearing her body apart. A furious Koyomi launches himself at her, but is easily subdued by Yozuru, who shows him that surprisingly, Tsukihi's body is already restored. She also explains that the Tsukihi in front of him is not his true sister but a phoenix assuming her identity. Shinobu threatens to attack the duo, and Yozuru, despite knowing that the vampire has not enough power to stop her, decides to leave, promising to return in the following day to slay Tsukihi, killing both Koyomi and Shinobu too if they try to stop her again. (Source: Wikipedia)