A young woman from a long-established hot spring inn is about to begin her training as a new waitress. Wanting to create the best possible sexual experience as her final memory of her student days, she decides to apply for and perform her first original AV role in XOX-019.

Before her training as a future hot spring hostess begins, she wants to experience more of the physical pleasure she's just discovered, so she contacts someone expressing her desire to appear in an adult film. After graduating, her free time will disappear. During this time, she sees erotic videos online of girls her age experiencing unprotected sex, bringing her to ecstasy, and she can't resist wanting to experience that kind of sex herself. She believes that if she can experience a carefree orgasm, she can sever her attachments to the past and be able to challenge the rigorous training—this is her greatest determination in life. Wanting to understand pleasure more, she films herself reaching orgasm during intense sex with an adult film actor.