Delivery boy Ye Zhou received a strange errand order, asking to deliver a pack of old books to the Chengnan scrap station. He flipped through it casually and found that it was full of hand-drawn diagrams of human meridians and weird boxing formulas. That night, he was blocked by three gangsters at the entrance of a village in the city. In desperation, he punched as shown in the book - the leader of the gang collapsed half of the brick wall.
