Li Jin makes it clear to the governor that his father, Chancellor Li, will back him, but he must make sure the Ye family is under his control. Fang Fei calls for the Ministry of Weaving and Dyeing who helps them figure out the chemical on the brocade causing physical harm to people. Though the Ministry of Weaving and Dyeing is unwilling to take sides, Fang Fei looks to her third uncle to help her find the buyer of the expensive Tuolou chemical that was applied to the brocade. (Source: frankly at MyDramaList)