A year after unsuccessfully applying for Hekikuu Gakuen, Sora passed the transfer examination to fulfill his promise of reuniting with his osananajimi Hikari. They joined up on his first day at the dormitory and he started helping out at the natural onsen Sakura-yu in the shopping mall next to the school on her recommendation. There he met the oneechan-like classmate Misaki, the half-blooded imouto-like Maria, and the shy but hard-working kouhai Yuma. Every day is lively, boisterous and full of laughter. These days of youth are summer love high pressure!