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.
元彼に復縁を迫られて困っているという早川に頼まれ、椿は一日だけ早川の彼氏役を引き受けることに。
その後、卜部には黙ったまま、早川が通う星ノ瞳女学院の文化祭にやってきた椿。
はしゃぐ早川に困惑しつつ、彼氏を装って出し物を見て回るうちに人気のない教室へと案内される。
そんな２人の姿を、文化祭に遊びにきていた丘が目撃。仲よく歩く椿と早川が気になり、２人の後を追いかける。
Cuando Ayuko va al festival con Kouhei, ve a Akira con Aika y decide seguirlos. Mientras Akira intenta detener los avances de Aika, Mikoto aparece en un robot de caja, lo que sugiere que hagan una prueba de sabor a ciegas de cada una de sus babas para ver cuál prefiere Akira.
