Together, they fought countless battles against the warlords Cao Cao and Sun Quan, and Guan Yu grew famous for his combat prowess and unwavering honor.ĭuring the war, Cao Cao captured Guan Yu. The warlord Liu Bei, and his friends, Zheng Fei, and the mighty Guan Yu swore an oath of brotherhood in a mystical peach garden, vowing to create a new, righteous world. In the ancient times of the East, a great war between Three Kingdoms raged. As a God, he is a guardian of justice, a hero to the downtrodden, the Saint of War. As a man, Guan Yu was the embodiment of loyalty, honor, and strength.