As Sōta feels conflicted over his feelings towards Mahiru, Aoi, wanting Hiroomi to give her some attention, tries to obtain information on the blossoming relationships. Later, Popura gets a toothache and takes the day off, having a dream where she becomes a magical girl. Meanwhile, Kirio ends up discovering Aoi, who is revealed to be the sister he was searching for, and is met with resistance when he tries to take her back home.

With Aoi's situation resolved, Sōta continues to be in denial over his feelings for Mahiru. Meanwhile, having finally learned Yachiyo's birthday, Jun gives her all the presents that he hadn't had the courage to give her before. Later, Aoi gets herself a cellphone, which she attempts to use to communicate with Kikuno, while Popura becomes depressed when she believes she's gotten shorter.