The modern deliveryman Zhao Xiaoliu was struck by lightning while delivering orders on a rainy day. During the Yongle period of the Ming Dynasty, he hit Su Qingdai, the "daughter of the emperor's merchant" who was being investigated in Weibo. Being penniless and carrying a take-out outfit, he had to lie and claim to be a "wonderful man who returned from overseas" in order to survive. Relying on the recipes, maps and modern knowledge on his mobile phone (which was running low on battery), he started by setting up a stall selling "new snacks" in the capital. He accidentally got involved in the whirlpool of a prince's succession and a melee between merchant gangs.
