Jack was a musician that committed crimes against his city. He was executed and was sent to hell. A demon offered him great power and the ability to walk and live on the surface again. He took the offer, but it had a price. His soul was bound to the demons command and control. Jack now roams the earth completing tasks his master needs done.
In the past, a boy named Jack Hascal was born. He was a musician by heart, and he set out to do it as a profession. He moved to the big city and joined a band. One day, his bandmate was caught stealing from Jack and fellow members of the band. He brushed this off and they continued making music. Until one day, when Jack cought the same member threateing a should for money. He grabbed brick from the ground and killed him. He was later caught and executed. When he was cast down to hell, a demon spoke to him. He offered great power and life on the surface. He blindly accepted and became the demons slave. He now wanders around on Earth, carrying out whatever the demon wants.