A new employee discovers that every woman at his sexy-costume company works in revealing outfits. His gorgeous G-cup trainer, Mitsuri Nagahama, explains that staff must wear and test their own products. When he gets hard, she slips a prototype masturbator over his cock and checks its performance while the other women watch him cum. Since his erection will not go away, she personally keeps draining him with a smile, then moves on to aphrodisiac-assisted sex to test his hardness and thrusting. Five erotic costumes stay on throughout this dream job where sex is part of the work and he leaves every shift with empty balls.