"I'll get a human man pregnant and save our clan!" Go Yumin, eldest son of the endangered Black-footed Wildcat Hybrid Clan, has never once met a female of his kind. Entering his first heat and driven mad by the urge to breed, he latches onto a secret rumor: a male wildcat can perfectly impregnate a human man. Determined to find the ideal candidate, Yumin sneaks into Hanguk University — and finds Beom Taejun, breathtakingly handsome with a body made for sin. To claim the proud Taejun, Yumin throws aside his wildcat dignity and courts him desperately. But somehow, Yumin ends up pinned on Taejun's bed, being thoroughly ravished instead. Wait — I'm supposed to be the one getting him pregnant?! Already addicted to Taejun's touch, Yumin must decide: does his clan's survival still matter when he can't stop coming back for more?