Ye Qingli, the legitimate daughter of the Ye family, uses hired actors and props to disguise herself as the greatest martial arts expert in the capital. Unexpectedly, she is granted an imperial marriage to Su Zimo, a young master whom the world regards as sickly and frail. After entering his household, she gradually discovers that Su Zimo is actually a Heaven-tier martial arts master who has kept his true abilities hidden for sixteen years. From testing each other to fighting side by side, the two join forces to uncover the truth behind an old crown prince case and the real circumstances of Ye Qingli's mother's death. They bring down the Empress Dowager and clear the wronged, then head together to the northern frontier to repel the enemy. In the end, they shed their disguises and live happily together in the warmth of everyday life.