Night Runner

Zack is an orphan. His father died in an accident when Zack was four. Zach was there as well and was sent to the hospital in a coma. After awakening from the coma they found that he has a weird disease. He is allergic to all food and the sun. He lives in Nicholls Ward; where they take care of mental patients. He sleeps during the day and waking up at night. Then one day his favourite nurse Ophelia disappears, a strange man on a motorcycle crashes through the reception windows leaving Zack with a weird message. Later that day a large, mysterious man shows up in his bedroom, wakes him and claims to be his uncle.
Zack finds out he is a vampire, his father was a vampire hunter and the very strong vampire who killed his father is now after him. He meets up with many people and places his trust in certain ones, but he later gets betrayed.