When Bai Qishan, the Princely Heir of Duke of Zhen, arrived in Fengcheng, he found it unscathed. The grain and forages officer claimed that no supplies had arrived. The Deputy Commander, Liu Huanzhang, stayed briefly in Fengcheng, saying the supplies had already reached the front lines, reassuring the grain and forages officer.
Bai Qishan knew Liu Huanzhang had betrayed them and turned back to aid Chuanling Mountain. Unexpectedly, Liu Huanzhang led 180,000 soldiers to ambush him in the Luofeng Canyon; their forces were imbalanced. Bai Qishan, with only 10,000 troops, could not withstand and, heavily injured, retreated to Fengcheng with 1,000 soldiers.
