Kouta, who lied to his friends, saying "I've got the best girlfriend too!" Then, when he's urged to "Let me meet her!", of course there's no woman he can introduce... At such a time, he found an "AI (artificial intelligence) equipped humanoid rental girlfriend"!? An AI girlfriend who is programmed to have emotions, personality, and even sexual preferences according to his tastes as time goes on. Will he be able to introduce her to his friends as his pride and joy girlfriend within the month until the appointment?