Immortal Enemy (2003)

When Narudom inherits a gothic castle from his deceased parents, he gets far more than a new place to live. In it he finds a book called "Immortal Life." By opening it, he inadvertently releases the ancient vampire Mekin, and now Narudom finds himself bringing new victims home every night to satisfy the vampire's thirst for blood. There are those who wish to put the dark creature's destruction to an end, however, and soon a young sorcerer will penetrate the castle walls in the hopes of doing just that.