After transmigrating to the Ming dynasty, Qin Yao becomes the most inconspicuous constable in the Embroidered Uniform Guard. From the start, a powerful eunuch frames him, and he is thrown into the imperial prison to await death. Stay calm: among the Ministry of Justice's unsolved cases, he spots the truth. This palace coup is nothing but a game of chess paid for in human lives. No one knows that in his previous life, he specialized in Ming history and knew every last detail, even what underwear the emperor wore to court. Three days later, he turns the case files inside out, brings down the Minister of Justice, and exposes an Eastern Depot mole planted in the Embroidered Uniform Guard. And the powerful director who holds sway over the court is kneeling before him, gritting his teeth as he hands over a life-or-death pledge. How does this brat know me better than I know myself?