When Tang San was in the Tang Sect, he was specifically responsible for the manufacture of hidden weapons. Before he leapt from the cliff, he had reached the level of an outer-sect supervisor and was extremely familiar with the Tang Sect's hidden weapon manufacturing process. Almost all of the Tang Sect's economic sources relied on the poisons and hidden weapons produced by the outer sect. After careful consideration, Tang San decided to transfer this method to Soul Land. Although there would be some difficulties, it was still feasible to start on a small scale.
Therefore, Tang San decided to take advantage of the holiday today to look for a blacksmith shop to partner with.