The Ruler Of Darkness

“He was a book.He was a book of scriptures.”His cover was made of the skin of those who hold a grudge against humans.His words were written with the blood of those who hold a grudge against heaven.His weave was created from the sinews of those who hold a grudge against earth.The heavenly demon, the ruler of darkness.Yeon Sang-hyeon, who signed a contract with the ruler of darkness at the last moment of his days, is now rewriting his own destiny.The Heavenly genius met The Heavenly demon!