From a young age, Zhou Chu, the commander of the Xuanjia Army, had disguised herself as a man. Upon her triumphant return to Beizhao, she was ambushed, only to discover that the culprit was none other than her sworn brother, Deputy General Xu Hanzhi. Rescued by her former battlefield rival, Shang Kefeng, Zhou Chu reclaimed her female identity and assumed the alias Xue Shisan. She infiltrated Dengying Tower to seek revenge on Xu Hanzhi, who resided there. She maneuvered between the two men in her quest for truth, feigning submission while treading a perilous path at every turn.