Leonard, the world's greatest heretic and Defier of Fate, perished under a cascade of betrayals—by his sister, the chosen one's humanity, and the Gods themselves. Commanded by the Goddess to infiltrate demon ranks during their invasion of human lands, Leonard sacrificed a piece of his soul through a demonic contract. He became something neither human nor demon, and through unrelenting effort, he turned the tide of war. His reward? Betrayal on an unimaginable scale. The war had been nothing more than divine manipulation. When peace suddenly erupted between humans and demons, they united against their former spy. Leonard faced execution by both sides, his final curse echoing into oblivion: "If there is a next life, I will tear you gods apart!" He received his answer. Reborn in the body of Kael Veydrin, son of the Grand Duke of the Heizen Empire, Leonard discovers that fate remains merciless. Kael's cursed bloodline runs through clogged vessels and absent talent—a disappointment to his sister, a mockery among nobility. The distorted history that destroyed his former life follows him still, a world conspired against him from every angle. But this time, Leonard wears a knowing smile. "Don't worry, Kael. I will have revenge for both of us. They called me heretic? I will show them what a true heretic becomes." Watch as Kael defies the heavens themselves, dragging down those who rule from above and rewriting the destiny designed to crush him.