The Perfect Boyfriend

Kuroo Tetsuro, Kozume Kenma, and Inoue Akihiko have been best friends since the beginning of middle school, when Akihiko moved into the house between Kuroo and Kenma's with his father after the divorce of his parents. When Akihiko's twin sister moves back in with their father at the start of their third year, Kuroo sets out convincing her that he can be the perfect boyfriend.