A creative, funny premise with a hilariously over the top execution, adorably sweet interactions between the main characters, a great aesthetic with the text boxes, colors, and art, and a hot boy to stare at to boot. What's not to love?
(Also, I really like how they come to the conclusion transylvanian bf turned into a vampire right after he mentions his lack of a reflection, but when they're thinking of ways to test the hypothesis they think exclusively about things that physically hurt vampires, instead of "let's stand in front of the same mirror" or something. They're like little kids putting their hand on a burning stove to see what happens.)