General Gu Yuan single-handedly quelled thirty years of barbarian rebellion in northern Xinjiang. He returned triumphantly to the court, but was jealous of the young emperor Shen Zhao. To avoid trouble, he was willing to disband and return to his fields, and went to farm in the barren Qingyunze. He promoted sweet potato cultivation and built water conservancy projects in the local area, bringing vitality to Qingyunze, but he was still guarded and suppressed by the court. Shen Zhao deprived Gu Yuan of his old military power, disbanded the Xuanjia Army, and sent an incompetent clan to take over Northern Xinjiang, leaving Northern Xinjiang defense empty. The new leader of the barbarians, Eagle Lord, took the opportunity to lead his troops to invade. The defense line in northern Xinjiang quickly collapsed, the people were massacred, and the Yanjiang Mountains were in danger. Shen Zhao regretted his mistake and sent his cronies to Qingyunze one after another to plead with Gu Yuan to come out, but they were all met with cold reception.