The mountain bandit king Ma Da You kidnapped Princess Jiang Qian Er and was accidentally struck by lightning in the process. Miraculously, they swapped bodies and even shared each other's feelings, becoming intertwined in fate. Jiang Qian Er wanted to swap back and marry her beloved young general Lu Tian Xing, and Ma Da You also wanted to avenge his father. The two had no choice but to compromise with reality and cooperate to overcome various difficulties.
Prince Ying secretly plotted a rebellion, sending people to infiltrate Ma Da You's stronghold and take control of it for a secret military base. Jiang Qian Er, Ma Da You, and Lu Tian Xing moved into Prince Ying's mansion, each with their own goals: Jiang Qian Er to investigate the death of Ma Da You's father and Lu Tian Xing to find evidence of Prince Ying's treason. Prince Ying rebelled ahead of schedule, overthrowing the court and leaving Jiang Qian Er homeless.
Lu Tian Xing was also forced by his treacherous father to marry Prince Ying's daughter, Jiang Ke Lan, to show loyalty. To deceive their way to safety, Jiang Qian Er, Ma Da You, and Lu Tian Xing pretended to be involved in a hilarious and tearful love triangle.
