I remember this one manhwa, so I'm pretty sure they met as a kid but now they're adults? I...

I remember this one manhwa, so I'm pretty sure they met as a kid but now they're adults? It's a yaoi (I think) and one of them got black hair and he's a beta and the other got blonde/light hair and an alpha.

There's nothing much I remember except for the fact that the black haired one is tall but his face leans to the pretty side rather than the handsome side.

Does anyone here know this manhwa?