From Emperor to Street Stall

In the eleventh year of Yongtai in the Tianyuan calendar, the forty-second emperor of the Dali Dynasty, Chen Wang, disappeared from the palace on the night of the eleventh year after he ascended the throne. Three days later, there was a young man setting up a street stall at the door of Jiangcheng City God's Temple. He sells a kind of dark brown sugar pill called "regret medicine" for ten cents each. Some people called him a charlatan, some called him mentally ill, and some saw a murderous general kneeling in the rain after the pill was taken into his mouth, crying like a child. No one knew that this stall owner was the emperor who originally sat on the throne. No one knew that he set up a stall to sell medicine, not to save people, but to save enough money to buy himself a "regret medicine". He once thought that the most difficult thing in the world was to be an emperor. Later I realized that the hardest thing is to be a person who has no regrets. The temple is filled with murders, and the world is in turmoil. An emperor who has lost his kingdom, a bowl of sugar pills of unknown origin, and a series of causes and effects gathered due to "regret". Some people come to buy regret medicine and seek relief; some people come to grab regret medicine and want to rewrite their destiny; some people search the world just to ask: "Have you... Regretted it?" And Chen Wan's answer is always the same - "The regret medicine costs ten cents a pill. Children and old men are innocent, and they will not be owed any credit."