Knight's Heart in the Corrupted Era

The knight's faith is protection, glory, and an oath engraved in the bones of the ten principles. But what if the father you admired all your life, the man who taught you how to be a knight, himself needs to be punished... What about the devil? Aidan Smith dreamed of becoming a great knight like his father, until he stood in the center of the battlefield against the Demon King. The ferocious Demon King turned around, but he had a face that was no different from his father Carlisle. "Kid, if you kill me, your father will die with you." Carlisle, a former knight, was deprived of his glory because of his unyielding faith, and retired to the countryside bearing the shame of the "Mild Fire" medal. He is willing to embrace the darkness and fall into the abyss of symbiosis between humans and demons, just to gain the power to protect his family. Little did he know that all of this was a chess game of ancient malice, and he was already the perfect breeding ground for cultivating demons. When the revelations of the gods fell coldly, and when the loved ones were judged because of him, Carlisle made the final choice - I am willing to give my life and soul. This is a tragic epic of faith and betrayal, light and darkness. (This book is also known as: "The Knight's Will to Believe in the World", "Darkness Falls: My Father is the Demon God")