Clara Ruroa is a French exchange student who loves masturbating. She becomes intrigued by an online ad for a pleasure-enhancing supplement and impulsively calls the number. After trying just one pill, she's shocked by its intense effects and ends up having sex with the dealer. The man calls in his friends, escalating the situation into an all-out orgy. Clara is repeatedly penetrated by multiple men and drenched in cum facials, experiencing a profound sense of Japanese masculinity and warmth. The entire encounter leaves her utterly overwhelmed, the supplement's effects impossible to forget.