Zettai Kareshi / 絶対彼氏。/ Absolute Boyfriend is Japanese drama series. With tagline “Kanzen Muketsu no Koibito Robot / The Completely Perfect Boyfriend Robot”, the story is about the Robot maker, Kronos Heaven, that finally develops “Night Tenjo”, the perfect male humanoid programmed to be devoted and completely loyal to his lover. They choose Izawa Riko to take part in a 5-day free trial. At first, Riko only sees Night as a household appliance. Asamoto Soshi, a distinguished young executive at her company, is also has feelings for her. The story is based on manga by Watase Yu.