Lu Qing's story begins after someone forcibly brands him with a mark. Others tell him that, bearing this mark, he can only live with his head bowed for the rest of his life. He has no powerful patron and receives no miraculous stroke of luck. Starting from the very bottom, he investigates who established the rules behind the mark, who stamped their approval on them, and who profits from them. Then, step by step, he brings everyone involved into the light. He relies not on brute force, but on account books, evidence, and unwavering judgment. The mark is on his body, but the answers lie within the scheme, and he will question it inch by inch until he reaches the truth. *Lu Qing Asks About the Mark* shows how an ordinary person dismantles the rules weighing him down.