Akiharu Hino transfers to the school and first runs into Selnia Iori Flameheart in a rather awkward manner followed by many other accidental encounters with other female students before coming across a familiar face.
Selenia and Tomomi remark on their days since their first meeting at Hakureiryo Academy, where they eventually become rivals to see who's the more diligent and accomplished lady. Meanwhile, the Academy's water system goes out-of-order, and the school has to use an indoor natural hot spring for the time being--and the servants and uppers are getting a little too cozy.
Akiharu's roommate, Kaoru Daichi, has an uncomfortable time establishing a rapport with Akiharu. Kaoru is, in reality, a cross-dressing girl acquiescing to her father's strict desires. In a few days, she will have a chance to be a girl for one day at an upcoming ball for cross-dressing students.
Pina Sformklan Estoh, an anime otaku princess, makes her move, much to Principal Kaede Tenjoji's enthusiasm. Akiharu and Tomomi are to assist Pina in creating a fabulous literary piece of her own.
Selenia finally gets her chance to have Akiharu accept her partnership for the next practical exam; only this time, she drags him to a vacation household of hers, where the maids stir up Selenia's relationship with Akiharu, apparently leading to a "summer of love."
After witnessing Selenia kissing Akiharu, Tomomi's feelings for Akiharu reach breaking point. Tomomi invites Akiharu to take her on a date, while Selenia spies on them. By the end of the day, Tomomi and Akiharu talk about their childhood conflicts.
Kaoru discovers a love letter for her and is now in a predicament, whether to confess her true feelings or expose her true gender. So Akiharu and the boys try to give her their own excellent advice.
Having another usual day of butler duties, Pina gives Akiharu tickets to a special waterpark as a gift. Tomomi and Selenia confront each other about their affection for Akiharu. Principal Kaede announces the annual sports day, so the girls use it as an opportunity to decide who goes with Akiharu to the waterpark.
