The King of Hell says you'll die at the third watch, but the Ghost Doctor can keep you alive until the fifth.
Once a down-and-out live-in son-in-law despised by everyone, he inherited the Ghost Doctor's secret arts after a car accident.
Life is unpredictable, and though he has endured all kinds of hardship, he still believes life is worth living. He learned the Ghost Doctor's peerless legacy so he could heal those he wished to heal and save the lives he wished to save.
He seeks not to cure the world, only to have a clear conscience.