Mikoto invites Kazari and Ruiko over to her dorms, ruining Kuroko's plans of celebrating her one month anniversary since becoming Mikoto's roommate. Upon learning that Kuroko had ordered aphrodisiacs for the occasion, Mikoto ends up fighting her in the hallway, only for both of them to be caught by the fearsome dorm supervisor intervenes. As punishment for using their powers inside the dorms, both of them are sent to clean the school pool the next day. Mikoto is introduced to Kuroko's classmates, Kinoho Wannai and Maaya Awatsuki, the former of whom is an aquakinesist that Mikoto saved from some thugs some time ago. Kuroko gets jealous of how well she gets along with others and cries, believing Mikoto does not care about her. To cheer her up, Mikoto gives her a present celebrating a slightly different anniversary; the day when they became friends. However, whilst toasting, Kuroko accidentally drinks the aphrodisiac she meant to give to Mikoto and becomes so overcome with lust that she steals Mikoto's underwear while she is still wearing them, prompting Mikoto to repeatedly electrocute her as punishment.