Song Yue, a doctor of medicine, accidentally traveled through time and became the legitimate daughter of the general's mansion who had been foolish for three years. She was a crazy lady who was poisoned by her concubine and stepsister and became a nunnery where she was beaten and scolded. Her concubine took over the family property, and her stepsister took her place and became the most famous eldest lady in the general's palace. In order to cover up the crime and hide the truth, the concubine sent people to burn down the nunnery, hoping to die without any evidence. When the impostor got married in her name, Song Yue walked back through the fire with a sword. The silver needle in the left hand saves people, the poison in the right hand kills the heart, slaps the face and abuses the scum, and takes revenge ruthlessly.
