…this is most obvious insofar as there being literally no explanation as to what defines a vampire within the world in which this story is taking place. There is a limit to the educated guesses a viewer can make about what vampires can do and what significance they have based on their portrayals in mythology and in other media; loose commonalities like blood sucking, having fangs and being immortal are on such an unimportant surface level in the grand scheme of things that it feels more like the characters in Diabolik Lovers are role-playing as vampires than anything else.… Read more.