20-year-old Akanai To is an outstanding student attending a prestigious university with an academic performance index above 70. Passionate about AI research, she is recognized as the youngest rising star in the field. One day, she comes across a social media post by an adult film actor and becomes intrigued by the allure of the AV world. Drawn to a comment stating, "Anyone who wants to have sex with an AV actor, feel free to apply," she sends a direct message. This leads to a meeting, then a trip to a hotel where they engage in non-stop gonzo sex throughout the entire day. Though she appears completely innocent and unassuming at first glance, once penetrated, she reveals unimaginable eroticism. The pleasure is so intense that her mind fills with mathematical equations. Gradually consumed by her own lust, she experiences ecstasy so overwhelming that even AI analysis cannot comprehend it.