Demon Lord

Die as a hero, only to be reborn as a demon... He is one of the strongest heroes in the world and has killed the Demon King, the most powerful demon of all time. He achieved things that no other hero could, but never expected that his own girlfriend, his own friends, and the organization he trusted would suddenly betray him and try to kill him. It was the cruelest blow he had ever received in his life. He still didn't give up and tried to hold his position, but they came prepared and he was caught off guard and fell into their trap. He tried his best, but found himself transformed into a devil! But who would have thought that after rebirth, he would turn out to be the husband of the Demon Queen. Let's see how he deals with those who try to step on him, and finally achieves revenge.