Following her romance with Vincent, Sophie herself has been turned into a vampire, and is serving an apprenticeship with Lucard. Mrs. Pfenning, Lucard's vampire accountant, is plotting to overthrow her master and wants Sophie to help. Meanwhile, Gustav finds the key to restoring Sophie to her human self in Vincent's unusual blood type, and Chris is able to introduce the solution into her system with a kiss. Pfenning's plan to kill Lucard fails when Lucard uses sleight-of-hand to switch glasses with her, giving her the wine tainted with holy water that she had intended for him to drink. Pfenning disintegrates, but nearly destroys the finish on Lucard's table!