I, the Evil Dragon, Build the Strongest Empire of Mankind

In the three hundred years since war was declared against the gods, Abaddon, the final dragon, has been sleeping. Until by chance, He agreed to the call of the prince of the human kingdom, and at the cost of the other person's soul, he fulfilled the other person's wish - to become a king respected by all people. "When this human body opens its eyes, the fate of the Kingdom of Elrond is destined to be rewritten. Humility? Charity? No, from today on, the only way to respect me is with fear.