Where Understanding Ends

A sex partner was born overnight. And he was so damn handsome. Ji Eun-Yeon, an omega with a unique constitution who can't sense pheromones, gets dumped by his cheating lover who calls him a "fake omega." Eun-Yeon blacks out after drinking alcohol in a fit of anger. When he comes to, there's something hot and thick between his buttocks. The next day, after spending a hot night with a handsome man he's never seen before, he finds out that he's his high school classmate, Alpha Cha Eui-Sol.

"Do you want to keep seeing me? I really liked it."

(Souce: Lezhin, translated)