In the last years of Yuanfeng, a humble official was accidentally involved in a murder case in the capital, and was forced to survive in the midst of the conflict between the nobles, Qingliu, and the imperial party. He has no golden fingers, no connections, and no backing. He only understands the calculations of people and the loopholes in rules. When the old dynasty's accumulated malpractice collided with the new emperor's ascension to the throne, and undercurrents stirred up the secrets of the court, he paid the price of flesh and blood every time he failed. From a humble ant to a chess player, he didn't know that the chess game had been settled twenty years ago.