Substitute Marriage: the Emperor's Favorite

He is the demon emperor who is feared by the world. He never takes action easily, otherwise he will see bloodshed and make people feel cold. However, he is also recognized as the fool king today. His IQ is like that of a ten-year-old child. He is innocent and stupid every day. Which one is the real him? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.