D.C. Girl's Symphony Pocket

On Hatsune Island, where cherry blossoms bloom year-round, Shio lives quietly with her step-brother Takaaki while her parents are abroad. Three transfer students — twin brothers Ryouhei and Kouhei, and their older brother Aoi — arrive and send the school into a frenzy. Shio's first impression of Ryouhei is poor. Later, when she hires a home tutor, she discovers it is Kei, the brothers' eldest sibling.