After General Xiao Jue pacified the Northern Territory, he was deprived of power by Emperor Li Shen due to his outstanding achievements. He calmly went to Yunmengze to disarm and return to his fields. He tried growing sweet potatoes here to benefit the villagers, but was jealous of Li Shen, the Black Armored Army was split up, and the defense of the northern border fell into the hands of mediocre people. The barbarian wolf lord took the opportunity to invade, the northern defense line collapsed, and Yanmen Pass fell. Desperate, Li Shen issued a self-incriminating edict and begged Xiao Jue to come out of the mountain. Xiao Jue recalled the scattered old Black Armored Army troops with his own order, set up an ambush on the front line, defeated the barbarians, and recovered Yanmen Pass. After the war, he refused to receive rewards and retained the methods of fending off enemies and farming. He returned to Yunmengze and returned to his garden to guard his fields.