Satanic High Priest turns to Jesus Christ, only to find out he's just started a battle between the two sides

John Romero served his master Satan so sincerely from his childhood as he was taught by his parents. Lonliness during childhood, rejection, and his bad family condition let him to embrace Satanism which gave him a sense of power and recognition. But till he met his girlfriend who led him to Church which one day John accepted Jesus Christ as his Lord and Saviour.

That's not the end of the story.. it's just the beginning of a dark lonely battle that started between the Dark side against the Kingdom of Light. It was a fierce battle which made John renounce Christ again.. find out the full battle in his life.