Earl Dracula is craving for blood. As he has'nt had fresh blood for days, he will die of starvation. When he finds a beautiful woman, he sneaks into her house. He is about to bite her neck when he discovers that she has had dinner with plenty of garlic.
A beautiful girl is lying on the road. Her blood has been sucked by Earl Dracula. In contemporary Japan, however, nobody believes she has been attacked by Dracula. Residents take the assault to have been by an animal when they see wounds made by teeth.
The science fiction club room at the school Chocola attends is going to be used as a storeroom. So the students look for a new room. They find a house that used to be a school, and decide to rent it. The house, however, turns out to be haunted by demons.
For no apparent reason, Don Dracula, the vampire, and his beloved daughter Chocola happen to move to Japan from Romania. They live peacefully in Nerima, a remote area outside Tokyo, until Hellsing, an expert on destroying vampires, comes after them.