In the worst perverted school where horny male students run rampant, transfer student Asuka arrives—known as the legendary ultra nymphomaniac. Rumors quickly spread that she was already giving out creampie on her very first day. Though her classmates call her the "Ultra-Invincible Nymphomaniac," the temptation is too strong: anyone who talks to her gets laid 100% guaranteed. A bullied virgin, half-jokingly approaching her, falls straight into her trap. Before he knows it, he's lost his virginity at her place, experiencing sex for the first time. Possessing endless lust and incredible bedroom skills, she systematically seduces every lewd delinquent in school, using her mischievous charm to turn the entire campus into a hotbed of eroticism.