Looking for a specific action/fantasy (?) manwha

The thing is, this might be super vague because I can barely remember what it was even about. It was one of those manhwas I'd just skim through. But lately I've been on a streak of reading similar series (ORV, MSCH, Trash Count, Eleceed, Illusion Hunter, I'm Not That Kind of Talent, etc.), and now I'm dying to figure out what this one was.

All I really remember is that the art style was gorgeous, literally every character was attractive asf. The cover (at least from what I remember) had a white-haired MC (paired w/ red background), and I know the characters had some kind of powers, but that's about it.

I also vaguely remember it revolving around a pretty big cast rather than just focusing on the MC. There also seems to be this running joke in the fandom where some other white-haired guy is obsessed with a black-haired guy. I *think* they're friends or on the same team, and I'm pretty sure they're side characters.

Another thing that stuck with me was the aesthetic. The backgrounds looked lowkey dystopian as hell, and everything was so red. Like, the entire manhwa felt red-coded for some reason.

As for the character designs, I remember they all kind of had the same outfit: either a black skin-tight turtleneck or a black shirt with a choker (?), paired with light-colored bottoms. I'm pretty sure the pants were really baggy.

Sorry if this is insanely vague. Like I said, it was something I'd only ever skim through, but now I'm dying to get a peek at what it was actually about. I just remember it being lowkey pretty popular, so I'm hoping someone knows what I'm talking about.