Rebirth of The Heavenly Demon (Novel)

After defeating all the enemies of the Murim Alliance, the Demonic Alliance and the internal enemies; Chunha Jin, the master of the Murim Alliance who held the title Strongest Under Heaven brought forth peace to all of Kang Ho. But one day he dies unexpectedly. Once he opens his eyes, he is in a body of a twenty year old youth named Byuk Lee Dan. How will the man who once held the title Strongest Under Heaven live his new life? And what will his death entail to Kang Ho?