Mortality [Hunter!Armin x Vamp!Reader x Vamp!Levi] AU

Having been a vampire for many centuries, [First] has risen through the ranks to eventually becoming a leader figure to many clans of vampires throughout the world. Hunters, [First]'s mortal enemies, will stop at nothing to end the reign of the vampires. However, one chance encounter will change the life of hunter Armin Arlert forever. As he and Levi, a vampire and [First]'s closest friend, begrudgingly become acquaintances, they realize that their feelings for [First] could put the entire clan at risk. **Contains strong language**