As Ayuko goes to the festival with Kouhei, she spots Akira with Aika and decides to follow them. As Akira tries to hold off the advances of Aika, Mikoto appears in a box robot, suggesting they do a blind taste test of each of their drool to see which Akira prefers. Akira instantly gets a nosebleed from Mikoto's drool, due to the fact she was naked inside her costume. Aika gets naked and attempts to give Akira her drool, but she stops when she starts crying, making it clear that her advances on Akira was simply an attempt to get over losing her boyfriend, who had feelings for someone else even when he was dating her. Mikoto tries some of Aika's drool, sensing she has long had unrequited love but assuring her she'll one day find the right someone. Just then, Akira's blindfold gets shaken off and he sees the girls naked, prompting slaps from the both of them. As Akira and Mikoto leave together, she tells him that her eventual kiss with him will be her first, prompting a smile when she tries his drool.

As Akira is a little bashful around Mikoto, having seen her naked and all, she requests to try his drool, her experience how flustered he is. The next day, when Mikoto uses her scissors against Akira for attempting to hug her, she is shocked when she sees she had cut his forehead a little. As Mikoto takes Akira to her home to get his injury treated, she finds her scissors have become less accurate, which she believes to be caused by a strange dream she had after trying Akira's drool. As Mikoto gives Akira more of her drool, he starts picturing Mikoto naked and ends up banging his head whilst trying to avoid hugging Mikoto on impulse. After hearing his reasoning, Mikoto decides to hug Akira of her own accord, which in turn restores her scissor technique. The next day, as one of his classmates offers to replace Akira's gauze, Akira opts to keep it as it was the gauze Mikoto gave him. Later that day, Mikoto once again initiates a hug.

After enjoying a nice chat with Tsubaki’s sister, Yoko, Urabe learns more about her mysterious boyfriend family.