Demon Hunter Union

They hunt the Dark creatures and adore vampires.

Do you know how every fantasy/isekai anime has that one gay dude that is super buff and fucks everything he sees?

Yeah, thats Demon hunters in this universe(mostly), just a bit more graphic and brutal.

They also often come from Demon hunter families, aka, they have a long history with the Dark creatures and love to "maintain" them.

It is suspected that they became this way cause with such habits they can make even Demons cry.