Also known as Master Wu, a middle-aged man with a beard, an iron official and leader in the iron official organization. He is Wu Wanrou's father. He came to Ying Yue complaining about his old age and bad health. He rushed into the government office with a red-hot iron/branding hook. He was penalized with salary deduction for being absent without reason and rushing in with weapons. Jia Xu ordered him to produce the first version of horseshoes within three days.
