Su Miao, the daughter of the court judge of the Imperial Hospital, was framed by the jealousy of the imperial concubine Jiang Yuli and was relegated to the cold palace by Emperor Xiao Che out of anger, leaving her to live and die. It was winter, and the imperial concubine concluded that she would not survive the winter. However, Su Miao, who has a good family background, tastes all kinds of herbs and knows all kinds of poisons, is quietly dormant in the desperate situation of the cold palace. Half a year later, the Queen Mother suddenly contracted a serious illness. The hospital was helpless and her life was hanging by a thread. In order to save the mother, Emperor Xiao Che put aside his imperial dignity and begged Su Miao, the abandoned concubine in the cold palace, to take action. Su Miao agreed, but put forward a condition: Let the imperial concubine Jiang Yuli kneel and watch her perform acupuncture to save people. The Queen Mother turned the corner, and Su Miao regained the Sacred Heart, overcame obstacles all the way, and finally ascended to the throne. When the former imperial concubine coughed up blood and questioned her in the cold palace, Su Miao leaned over and chuckled, revealing the shocking truth that the bowl of poison that framed her was her own hand.
