A cute girl named Rin (age 19), who happens to be a model and has H-cup breasts and idol-like facial features, participates in this erotic project that connects her forever with other beautiful girls. In this episode, they travel all the way to Enoshima during summer time. Despite being surrounded by people, she confidently shows off her sexy bikini body without any hesitation or shame. She even invites one of the guys to join her in the hotel's shower room where she performs a blowjob! Once they move to their hotel room, she continues to indulge in various sexual acts using her amazing H-cup tits. Just how far will this secret slut go to satisfy our desires...?