The animated film is set in a futuristic dystopian \[if it can be called that\] and has various fantasy creatures including vampires..
What is very unique about this story is that it has futuristic tech like mega-machines, laser guns etc
here is a blurb from one of their manga, hopefully it serves as a reference point-
*”12,090 A.D. It is a dark time for the world. Humanity is just crawling out from under three hundred years of domination by the race of vampires known as the Nobility. The war against the vampires has taken its toll; cities lie in ruin, the countryside is fragmented into small villages and fiefdoms that still struggle against nightly raids by the fallen vampires-and the remnants of their genetically manufactured demons and werewolves.*
*Every village wants a Hunter-one of the warriors who have pledged their laser guns and their swords to the eradication of the Nobility. But some Hunters are better than others, and some bring their own kind of danger with them… “*
Thanks you.
by MotivatedChimpanZ