On the day of the draft, the butterfly fell from her shoulders, and Zhen Huan stepped into the Forbidden City with a start, and was involved in the turbulent whirlpool of the harem. When she first entered Broken Yuxuan, Concubine Hua deliberately made things difficult for her. An accidental fall during a flower-viewing banquet made Zhen Huan see clearly the cruelty of the harem. At the birthday banquet, the dancers were facing each other with swords. Zhen Huan cleverly resolved the situation with her wisdom, which attracted Long Yan's attention, but also attracted more jealousy.
The queen secretly planned to take advantage of An Lingrong's inferiority and alienate the sisterhood. An Lingrong gradually turned dark under the Queen's instigation, and the closeness he once had no longer existed. Zhen Huan fell into an isolated and helpless situation, and misfortunes never come singly. She was thrown into the cold palace by the angry emperor because she mistakenly wore a palace dress that looked like Queen Chunyuan.
In the cold palace, Zhen Huan met the bodyguard Xuan Qing, and the two supported each other and struggled to survive. By chance, Zhen Huan discovered that there were clues to the treasures of the previous dynasty hidden under the cold palace, and used this to escape from the cold palace. Outside the palace, Zhen Huan used the treasure to form an intelligence network to bring down Nian Gengyao and weaken Concubine Hua's power. Then, under the hint of the Queen Mother, Zhen Huan returned to the harem as Niu Hulu.
After returning to the palace, Zhen Huan relied on her accumulated connections and wisdom to expose the queen's evil deeds one by one, helped the prince she supported ascend to the throne, and finally reached the pinnacle of power in the harem. Looking back at the journey, the bloody storms along the way turned into calmness in her eyes.