Gan Ning was very unhappy with Huang Zu and wanted to leave him, but was worried that Huang Zu would not allow it so he felt very frustrated. Su Fei understood Gan Ning's frustration so he invited him for drinks and said: "I recommended you to Huang Zu many times, but he doesn't want to make good use of your talents. As days pass, people grow older. You should make plans for your future and find someone who truly appreciates your talents." Gan Ning paused for a moment before replying: "That's what I have in mind, but I can't find an excuse to leave." Su Fei then said: "I will suggest to Huang Zu to appoint you as the chief of Zhu County (邾縣; northwest of present-day Huanggang, Hubei). Although it may be a difficult start, it will eventually become easier for you to decide where to go from there." After Huang Zu approved Su Fei's suggestion, Gan Ning gathered a few hundred men who were willing to follow him and headed towards Zhu County. From there, they crossed the border into the Jiangdong territories.