Just my thoughts

I've noticed a pattern in manhwas featuring beefy, dark-haired bottoms—like Black and Blue—where there are practically no side couples with a muscular top of the same hair color.

But in manhwas where the main top has dark hair, there’s almost always a side couple, and the bottom looks like a near-identical copy of the main one.

It’s too consistent to be a coincidence.

Are they deliberately creating certain dynamics?

Trying to challenge the usual straight manhwa tropes? Is there some deeper agenda at play? Hard to say, but it feels intentional.

Side note:
I read this story—it was decent, but I expected another couple.

...