The female doctor Tang Wanqing travels back to the ancient woman of the same name and makes a big fuss at the wedding of her former fiancé and her cousin. She rescued her stepson Song Jin and made her husband Song Yuanshao change his mind towards her. She checked her pulse and found that her obesity was caused by poisoning. She lived alone for a month to detoxify and lose weight. The elder sister-in-law repeatedly targeted her but failed, so she teamed up with her cousin to reveal the emperor's medical list and forced her to treat the emperor's illness. While in Beijing, she learned that Song Yuanshao was a general, and Song Jin was repeatedly killed because of his status as the prince. In the end, she and Song Yuanshao teamed up with the emperor to expose the villain, Song Jin was established as the prince, and the couple left the capital and headed for the border.
