Have you read a manhwa called Blood Bank? Its a gay bdsm thing between a vampire and a human and listen. I thought I was going in for the smut but like 20 chapters in i was living for the plot and characters. And unlike a lot of yaoi type comics it doesn't have weird skeevy tropes and the relationship is consensual and it even has fleshed out good female characters and positive heterosexual relationships. It's like captive prince; thought I was getting smut and got a ton of good plot too
Ooooh, I am intrigued.