The devil king is a monarch who has no desire to murder and wishes to dominate the entire world and become the most powerful person in the world.
Since nearly half of the world became his territory, the Seventh Demon King is said to have become the strongest demon king.
Five of the eleven nations were conquered, and the people were forced to work as slaves for over three centuries.
However, the demon king, who is said to be the most powerful, is in love with someone.
They'd been together for four years and had a child together. The two got along swimmingly, but the demon king had no idea that the woman he adored was plotting evil.
Because it was the demon king's birthday, there was a party at the demon king castle one night. The demon king became inebriated, and the demon queen took advantage of the situation by giving him a poisoned drink.
The demon king instantly recognized the poison, but it was too late; he had already drank it, so he used his power and cursed the demon queen, saying that no matter what happened, she would not inherit the crown and throne.
And shortly after, the demon king died, and when the loyal general heard about the demon king's huts, he assumed it was the queen's fault, so he fled the kingdom with the demon king's son and hid.