Zeng Ye, known as "Mustang" on the road, was mistaken by Luo Shuying, the eldest daughter of the reclusive wealthy Luo family, for "Qin Yuan", the Qin family's Qilin son who had been missing for many years, and forcibly signed a substitute contract. Luo Shuying comes from a top power and controls the Tianji Pavilion, but he is a confused villain who often gives wrong orders and recognizes the wrong targets. Zeng Ye wanted to escape, but he awakened the golden finger "substitute editor", which can use his luck to create death puppets, identity substitutes, and ability substitutes. On the surface, he acts as a stand-in, but in fact, he plans carefully and fights back with iron blood. The Qin family's tests, the trials of hundreds of tribes, and the assassinations of the tombkeepers followed one after another, and every step was extremely dangerous. Zeng Ye relied on his optimism and social skills to control all forces at his fingertips. Until he discovered that Luo Shuying's confusion seemed to have another hidden meaning, and that he might be a substitute for a larger existence - this chess game had just begun.