The blacksmith's association has decided to have a competition to see who has the most coins. The winner of the competition has to clean the dormitory for a week. The two men are so fast that they can barely keep up with each other. The big stomach king tells us that the record for the competition is 80 buns and 5 bowls of soup. He says that mang-tian gave him his workplace address in Donghai city so that he can use it to find cen-yue. He also tells the big sister that he has a recommendation letter from cen. She tells him that cen is a friend of teacher tian and that he is free to come with her. He thanks her and tells her that he will follow her to the blacksmith test room. The test room is full of fifteen types of metals, and the grades are based on the degree of purity and type of metal selected. If the student scores sixty or more, he will be declared a first-rank blacksmith.