In order to protect his daughter (from romance), Kanna's dad makes a humanoid robot boy, Kojirou, to serve as her bodyguard. At first Kanna hates Kojrou, but bit by bit she starts to be attracted to him... can a robot really return her love? Included one-shots: Volume 1: Senro wa Tsuzuku no Da Volume 3: Nanatsume no Fushigi