Marina Hasumi, a delinquent girl from Osaka who came to Tokyo, enters the AV industry due to financial difficulties. With sharp eyes and a distinctive Kansai dialect, she initially approaches the crew with a tough attitude, openly complaining about the AD and older staff's small cock, giving off a difficult impression. However, her demeanor completely changes upon the arrival of handsome and top-tier male AV stars, visibly putting the crew at ease. In the end, the power dynamic flips, and she delivers a determined, passionate debut, firmly committing to creampie scenes with strong resolve.