Qin Zhaoxue, the female general protecting the north, firmly holds Zhaoye Pass. Her military provisions are cut off and foreign enemies press close to the border, while the imperial court's seal-holding eunuch steps by step forces her toward death. Everyone mocks her dependent husband Shen Yanzhou as someone who only knows how to serve soup and live off his wife, until the city gates are about to break, when he ascends the city wall in a suit of red robes, using three copper coins to awaken the dark networks of the world. It turns out her gentle husband is actually the master of the Tingfeng Pavilion. One guards the bright city, the other masters the dark winds; from suspicion and confrontation, the husband and wife break through the enemy side by side, and must further uncover the shocking conspiracy of the eunuch faction selling grain to traffic with the enemy and imprisoning the Son of Heaven. Yet when the dark web comes to light, Shen Yanzhou must also stand trial for what he did in the past.