at the end of ch25, Kokosaki and Mashiro are at a festival together and when Mashiro takes Kokosaki by the hand and leads her on, Kokosaki realizes that although she hates that kind of packed place, being with Mashiro makes it so nothing can bother her. She then realizes she likes Mashiro too much, basically, and she's afraid of losing her "friend" (the word friend appears inside quotation marks) if she ever finds out about her ability to read minds. Then, at the end, the narration goes "when did Kokosaki realize her feelings...?"