Yun Jin, a market vendor, was born with a koi constitution. The more unlucky she is, the more adventures she can trigger. However, she lost her spiritual power due to an accident. She has been living in the East City for many years, selling sugar-coated haws. She meets her former classmate Shen Linyuan, who is now the Supervisory Department Chief Siming. After Shen Linyuan recognized Yun Jin, he secretly investigated her back then. The truth about dropping out of school was found to be related to the secret treasure of the royal family; Yun Jin once again used the power of koi to save the abducted children, but was pursued by the mysterious organization "White Lotus Society"; she found an ancient painting in an old bookstall, which contained clues to the late emperor's edict; among her classmates, someone was an undercover agent of the White Lotus Society, Some people betrayed for the interests of the family, while others silently guarded them; Yun Jin activated a new physical stage in desperate situations, from passive transport to active control of luck; she and Shen Linyuan went from suspicion to cooperation, and their relationship quietly grew in the confrontation of life and death; it was finally revealed that the leader of the White Lotus Society was actually that year The most respected teacher, his purpose is to subvert the court; Yun Jin must make a choice: sacrifice the power of the koi in exchange for peace in the world, or retain his ability but let his ambition spread; the book uses the various situations in the market as the background, and the game of luck as the main line, with emotions and conspiracy intertwined, exploring the boundary between the ordinary and the extraordinary.
