The world was in chaos, the Liang Dynasty was overthrown by the rebels, the mountains and rivers were shattered, and the people were plunged into dire straits. The once prosperous towns are now devastated, with people starving and dying, and the people living in dire straits. Prince Li Yunyi narrowly escaped death in this catastrophe. He looked at the people who once lived and worked in peace and contentment were displaced, and his heart was filled with sadness, anger and unwillingness. In order to save the people, Li Yunyi decided to step forward, but he knew that he was weak and a direct confrontation would undoubtedly be an egg against a stone. Therefore, Li Yunyi relied on his intelligence and wisdom, and took advantage of the folk's awe and legend of the Night God to transform into the mysterious "Messenger of the Night God". He established a night-wandering magic army to fight against the rebels and rectify the powerful, restored the rule of the Liang Dynasty, returned the people to a peaceful home, and gradually restored vitality. Li Yunyi also became a hero in the hearts of the people. His story was passed down by word of mouth and became a legend.