Guan Yu
Cao Cao's followers strongly opposed their lord's decision to allow Guan Yu to leave as they felt that Guan might become a threat to their lord in the future. Despite this, Cao Cao gave a strict order that no one was to stop Guan Yu. However, along the way, Guan Yu encountered resistance and had to fight his way through the passes. Guan Yu slew Kong Xiu, Han Fu, Meng Tan, Bian Xi, Wang Zhi and Qin Qi, consecutively after they attempted to stop him. It was eventually revealed that it was Emperor Xian, and not Cao Cao, who issued the order to kill Guan Yu. Before reuniting with Liu Bei, Guan Yu agreed to kill Yuan Shao but entered a dilemma on whether to stay or leave in favour of his relationship with Qilan. However, before Qilan left, she pretended that she loved Guan Yu and said that she would ask for Liu Bei's consent for them to marry. Her true intention, however, was actually to stop Guan Yu from helping Cao Cao. Guan Yu refused and was stabbed by Qilan before Emperor Xian sent assassins to kill him. After a final grim exchange of words, Guan Yu turned his back on Cao Cao and the emperor. He headed to reunite with Liu Bei, fighting against his lord's rivals for the next two decades until his death.