Kakushite! Makina-san!!

Eita Akutsu secretly admires the seemingly perfect Makina Agatsuma, but he is far too shy to speak to her and spends most of his energy developing his robotics skills. Then he finds Makina injured outside his apartment and discovers the secret no one at school knows: she is an android.

After repairing her, Eita learns that Makina was designed to seduce men and extract information, although a malfunction prevents her from performing that purpose properly. She decides to move in and declares Eita her new owner, repeatedly trying her programmed techniques on a boy who is far more interested in studying her engineering than being seduced. Living together becomes increasingly chaotic as the shy robotics enthusiast and the machine built for temptation grow closer, especially when Makina begins behaving in ways that do not seem to exist anywhere in her original programming.