The Betrayed Prince's Revenge

Kael Quinn, a prince, guarded Demon's Bane Pass. His merits were stolen by the royal family, and he was framed for colluding with demons. After his wife was poisoned and his daughter's Supreme Bone carved out, he awakens as the Chaos Emperor and leads the Black Dragon Cavalry back to the Imperial Capital for revenge. Kael Quinn annihilates the demon army and slays demon gods. After settling the blood debt with the royal family, he refuses the throne and roams the world with his daughter.