Beneath the suffocating sky of Z City, Zhao Tian loses everything: his childhood love, his pride, and his faith in loyalty. But when a colossal purple thunder splits the horizon, his destiny is rewritten forever. He does not die—he is chosen. Struck by the Primordial Purple Lightning, a pure force that has escaped the laws of Heaven, Zhao Tian awakens in the primordial era as Cangtian. In a world where gods, dragons, and immortals wage war for supremacy, Cangtian is no longer the weak young man who could be trampled at will. With the Nine Heavens Lightning Seal in his grasp, he challenges the ancient rulers. When Zulong, the Ancestral Dragon, descends in ocean-shaking fury, Cangtian realizes that the enemy before him is not merely a cultivator, but the embodiment of death’s law itself. From betrayal in a noisy bar to cosmic battles above the clouds, this is the journey of a man who transcends pain to become the thunder sovereign feared across the universe.