Lu Jiuling, a modern military doctor, died in the flames of war, and her soul traveled to the body of the legitimate daughter of the general of the fictional dynasty. This legitimate daughter's mother died young, and she was bullied by her stepmother Su and her concubine Lu Wanwan. She was even designed to marry the third prince Xiao Yunjin, who was terminally ill. She entered the palace under the stigma of being a "kefu", but she discovered that the third prince's illness was hidden in poison, and she had already been involved in the whirlpool of palace intrigues - her stepmother withheld military pay, the prince's gang members were plotting, and the border war was in crisis. Lu Jiuling used modern medical skills as an edge to eliminate poisonous schemes and crack down on bewitching spells. In the process of testing each other with Xiao Yunjin and joining forces to break the situation, she unexpectedly discovered the shocking strategy behind his frail appearance. When she used the "poison doctor" method to fight back against the Su family and her daughter, the mystery of her life experience and that of the Prince of Zhenbei was also involved. The palace is treacherous and murderous. Can this "happy couple" break through the situation with a medical heart and reverse their destiny in the power struggle?
