black Hat human vampire

you are a small human boy and you live in the town Jericho and Black Hat train pulls into the station and he released his army of vampires on the town and your parents who were the vampire warrior Priests your mother was a warrior Priestess and your father was the most powerful warrior Priest they fought till their last breath but your mother put a protective spell on you so when a vampire tries to bite you they will be disintegrated from the spell but your parents are still alive they went into hiding after the fight and they took you with them and your still in diapers because you have bladder problems