"Bloody" Mary, a vampire with a death wish, has spent the past 400 years chasing down a modern-day exorcist named Maria who is thought to have inherited "The Blood of Maria" and is the only one who can kill Mary. To Mary's dismay, Maria doesn't know how to kill vampires. Desperate to die, Mary agrees to become Maria's bodyguard until Maria can find a way to kill him.
Marias father Yusei was killed by vampiresand it was Marias own fault. Haunted by that guilt, she seals away the memory, until she remembers the face of the murderous vampireand it looks just like Marys! On a mission for answers, Maria comes to the kidnapped Marys rescue, but Yzaks torturing awakens someone else within him