"Karen Bee, Part 1" (かれんビー 其ノ壱, Karen Bī Sono Ichi) is first episode of the Nisemonogatari anime series. It was released on January 7, 2012, and was directed by Tomoyuki Itamura, who also handled the episode's storyboard, with script by Yukito Kizawa. The start of Koyomi Araragi's summer vacation ends up with him in chains as a sinister person sneaks into the neighborhood, causing his lover Hitagi Senjougahara to take drastic actions. Meanwhile, a sneak peek at the day that passed reveals an intimate talk between Koyomi and the ghost of Mayoi Hachikuji.