Fresh and cute new female assistant director, Sarina Higashibata, joins an adult video production company! She's a serious person, but she's also curious about anything naughty. The adult toys she sees around her and the acts happening right in front of her on set spark an uncontrollable sexual desire... She's so sexually uninhibited that she even masturbates secretly at work, and as she works as an assistant director, she begins to wonder if acting might be a better fit for her...