Su Ningxiang is the concubine of the Prime Minister's Palace. She entered the palace for her sister who escaped from marriage. She only stayed in the most remote Ningxiang Pavilion while waiting for her to change clothes. She has no family background to support her, but she relies on her clear mind and intelligence to survive in the whirlpool of the harem. One late night, she warmed a bowl of soothing soup for the emperor who was approving a memorial, and won the emperor's eyes with her sincerity. Faced with the concubine's plot and the concubine's poisoning, she did not play tricks and used wisdom to resolve the crisis; when the emperor was trapped in the court, she used folk wisdom to provide good advice. From changing clothes in Jiji to being the empress side by side with the emperor, Su Ningxiang used love as a shield to protect herself and the emperor. In the turbulent deep palace, she wrote a legend of pure love in which the emperor and the concubine knew each other and stayed together.