Q:Generate a question about the following movie plot: An evil vampire duke seeks to kill and collect the blood of a royal family of European vampires in order to become all powerful. The last surviving member of the family, Prince Kazaf, flees to Hong Kong with his servant Prada. There, they are introduced by estate agent Momoko to live in an abandoned church. Vampire hunter Reeve is depressed after his partner Lila is killed by vampires. He decides to train Lila's younger sister, Gypsy, to inherit her sister's duty and fight the vampire duke. However, Reeve's own sister, Helen, sees Gypsy as a rival. At the same time, Kazaf meets Helen and falls in love with her, after which he intends to lead the life of a human being, but he is tracked down by the duke. Helen helps Kazaf and lets him hide in her home, where they are later discovered by Gypsy. Meanwhile, Reeve falls into the duke's trap while hunting vampires. Helen and Gypsy team up to save him.
A:
Who does Kazaf fall in love with?