I'm the Only Alpha Male

One day, Hyun-woo wakes up to find himself in a world full of women demanding sex, saying they want his body. At first, he thinks this must be paradise. But then he learns of a ridiculous law: if he ejaculates before the woman reaches climax, he becomes her slave.

In this strange world where men are enslaved just to satisfy women’s desires, Hyun-woo must flip the rule to survive—he has to make them climax first…!

Original Webtoon