Riho, an active doujin cosplayer, is incredibly popular for the gap between her baby face and her plump, beautiful huge breasts. However, since she usually refuses erotic requests, her fans can only take photos while suppressing their desires. One day, during a routine private photo session, some out-of-control fans secretly drug her with an aphrodisiac. As it turns out, this was a professional-grade aphrodisiac used on actual AV sets. The fans are overjoyed as she makes ahegao faces and strikes lewd poses she would normally never do. Getting carried away, they repeatedly administer a super-concentrated aphrodisiac that awakens extreme sensitivity with just a single drop. Things escalate to the point where her normal expression becomes ahegao, her ego completely vanishes, and she reaches climax over and over through filthy sex. To the point where she can never go back to being a normal cosplayer... #YoroP