Karen Bee, Part One.Koyomi wakes up just to find he is in an unknown location held captive. It happens to be Hitagi that captured and imprisoned him. She says she is doing so in order to protect him. Hitagi also takes this opportunity to tease Koyomi, which she takes great joy out of doing so. Going back to the morning of the day, Koyomi is involved in a short fix with Tsukihi after hearing that Karen is out, assuming she is making trouble. Koyomi then remembers Nadeko's invitation to her home in the past, so he decides to give Nadeko a call to see if she is free and wants to hang out with him. While on the way, Koyomi stumbles across Mayoi and decides to spend some time with her first. They talk for a long time while Mayoi gives Koyomi some friendly advice. Mayoi says that she will come back when she needs his help and that she will tell when she will leave for good. Koyomi remembers that Oshino said that same thing to him before leaving the town.