The Founding Grand Princess Xiao Zhaoyang spent ten years defending the borders and fighting bloody battles in the northern territories, reclaiming lost ground and returning in triumph to the capital, full of eager anticipation to reunite with her young daughter Xiao Jin'an, from whom she had been separated for a decade. Unexpectedly, upon returning home, relying on her daughter's exclusive phoenix-tail flower birthmark, she instantly saw through the gentle and sensible Chu Yao as a fake imposter. Strongly seeking vengeance for her beloved daughter, she purged the treacherous officials in the estate and the rebellious factions in the imperial court, pacified external threats and hidden dangers, and ultimately the mother and daughter guarded the prosperous rivers and mountains side by side, welcoming a harmonious and secure ending.