Qianhu Zhouqi of the patrol camp set up a bureau to hoard pig iron, driving up the price of iron in Yunzhou, luring the third prince Canglang to spend all his financial resources to buy iron, intercepting the materials along the way, and removing the hidden line of Tianlang, thereby stabilizing border armaments and strengthening mutual markets. His subordinates Yan Pingsheng and Du Fei went to the grassland to rescue the Sirius maid Saya, and used their testimony to convince the Fire Falcon King to join forces to attack the Cang Lang. Just as the three parties agreed to start a war, the imperial court issued an imperial edict to discuss peace and ban war. Zhou Qi ignored the ban, holding a sword unstained with the enemy's blood, determined to send troops against the will, and insisted on going to war with Sirius.
