Ayuko decides to have her lunch next to Mikoto, much to everyone's surprise. As Mikoto gets a scrape during PE the next day, Ayuko takes her to the nurse's office to treat it. After sharing a drink with her, Ayuko discovers she suddenly has the same injury as Mikoto. They soon deduce that Mikoto's drool can also transfer injuries, showing Ayuko has a similar connection to her as Akira does. Ayuko mentions how she became fascinated by Mikoto after seeing her with Akira, but Mikoto rejects her offer of becoming friends. The next day, Ayuko feeds some of her drool to Mikoto, deducing from her reaction to its sweet taste that she hasn't kissed Akira yet. Afterwards, Mikoto and Ayuko begin a daily routine of spending lunch together.