劉琮
Lou Gui later left Liu Biao and joined Cao Cao as well. Cao Cao treated him respectfully and commissioned him as an army general. However, Lou Gui never held command of any troops and instead served as a military adviser. In 208, when Cao Cao led his forces to attack Jing Province, the provincial governor Liu Cong (Liu Biao's son) surrendered and offered his "fu" (a tally symbolising authority) to Cao Cao. When Cao Cao's other advisers suspected that Liu Cong was pretending to surrender, Lou Gui argued that Liu Cong was sincere since he had given up his "fu", and managed to convince Cao Cao to accept Liu Cong's surrender.