Vampire Dragons are members of the undead. They sustain themselves by drinking the blood of others. It is said that they are only “alive” at night, and seem dead or asleep during the day, as they cannot endure sunlight for long periods of time. Vampire Dragons can only reproduce by changing the eggs of other dragons, puncturing the shell with their fangs and injecting venom that kills the baby inside.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Joining the noble family with her immortal mother was a thing she never expected. As third in rank in the household, she is considered a very powerful, respected vampire. She is usually found in the castle halls, drinking blood from a wine glass like a true noble. Mainly she is in charge of managing and maintaining lower rank vampires and usually gives out orders on behalf of the Countess.

Part of being the progeny of the Countess, Seras instinctively feels whenever her mother is in danger, mainly from Lady Van Hellsing's rage towards her. While she is not as powerful as Lady Van Hellsing is, she still trying her best to ease her sister's anger. Like her sister, she doesn't have a name or remember her family, but she is thankful for what her ''mother'' did and gave her.