A girl gets caught in a skin exposure awareness survey conducted for an online show. Lured by the promise of compensation for being deceived, she gradually begins to cooperate. What started as simple tasks like putting on or taking off underwear slowly escalates into increasingly sexual demands, eventually leading her to the major step of grinding. "Huh? Grinding? No way, absolutely impossible!" she exclaims in shock—but her reaction sparks an unexpected turn of events. The act of grinding isn't just a sexual act here; it's a harbinger of the spontaneous incident born from the situation. That single moment sets the story on a path toward its climax.