The Twins Effect 2003

It is said the vampire who absorbs all six vampire princes' blood and opens the dark bible Day For Night can control the human world. Ace vampire slayer Reeve and his new partner Gipsy are on a mission to stop this from happening. However, Reeve's younger sister Helen falls in love with the fifth prince Kazaf, who is a gentle vampire. When the Duke is about to open the Day For Night, Helen and Gipsy arrive at the church and fight against The Duke...