Hana Uzaki reunites with Shinichi Sakurai, an upperclassman who was in the same club as her in high school, at the start of her first year of college. To her astonishment, the previously lively senior has turned into a "lonesome" student who prefers to spend his spare time in solitude and quiet. Uzaki tries everything she can to keep Sakurai from feeling "alone," including persuading him to go to the movies and to his part-time job. Even though Sakurai finds her annoying and monotonous, he continues to partake in Uzaki's escapades, despite the fact that he knows her bubbly disposition would only lead the two of them into numerous amusing situations.