Ichinose Akane, a second year in high school, is going to a new school, but once she gets there, she got herself lost. But Ninomiya Aoi, a nice girl who looks like a pretty boy, and Sanjou Midori, a beautiful girl who likes to play pranks, helps Akane. The three realize they're all in the same class, and becomes close friends. Now what kind of adventures will they have?