A live-action adaptation of Otona Teikoku's latest helpless-heroine fantasy. Nina, a cool and busty former enemy weapon, is brought home and turned into a personal maid. She is now part of the family, but an emotionally closed-off adult Kento exploits her lack of resistance and has sex with her whenever he wants. Though outwardly emotionless, the curvy, big-titted Nina is extremely sensitive, her breasts bouncing as she climaxes again and again while he repeatedly creampies her. What began as nothing more than sexual release gradually becomes something else...