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Bonus & Set Product Information: Adult Summer Campaign 2026—40% off eligible items, including the latest pre-order titles from S1, Moodies, Madonna, and other popular studios!! *Please note that after the campaign ends, shipping may take some time, we may split your order into separate shipments. Please be aware of this in advance. About Products with Bonus Items and Bundles One day during college, a man who got completely drunk at a drinking party wakes up in the room of his senior, Kuu. There, he discovers Kuu’s secret hobby—“nipple-training masturbation”—and ends up entering into a relationship with Kuu that he can’t tell anyone about. Time passes, and the man lands a job at the same workplace as Kuu. The two continue their secret relationship as before. Even more sensitive than during their student days, than during their student days—they’ve become organs of pleasure surpassing even the clitoris! Furthermore, Kuui trains the man’s nipples just as she has her own. The man goes wild with a pleasure entirely different from that of a penis. And the woman gets wet just watching him like that. The ultimate compilation of a woman’s terrifying nipple-training record, born from a perverse obsession with nipples, reaches its peak here. This item is eligible for “Convenience Store Pickup.” Click here for details.