A string of Ming-dynasty "Five Poisons coins" becomes a passage spanning four hundred years. Lin Wan, a modern office worker in the city, develops dissociative symptoms from work stress and unexpectedly transmigrates into the body of Shen Zhiqiu, a merchant's concubine in the Ming dynasty. From conflict to coexistence, from strangers to confidantes, the two search for a way forward amid the hardships of their respective eras, ultimately forging a "twin" alliance that transcends time and space.
