Two modern souls fell into the Qing Palace. One became Xu Jun, a clever maid beside Zhen Huan, and the other became Feng Xiao, a clever maid under Concubine Hua.
They were originally in enemy camps, but due to a poisoning conspiracy at the Dragon Boat Festival, they caught a glimpse of the tacit understanding behind each other's eyes. The queen's lead poisoning, the concubine's frame-up, the hydrocyanic acid in the rouge... The deep palace is a trap at every step. They borrow a pearl hairpin and two boxes of new tea to communicate secretly, paving the way for their respective masters in the light of swords and shadows, and even in no place, they use a silent alliance to fight against the conspiracy of the sky.
When the overt rivalry between Zhen Huan and Concubine Hua meets the secret alliance between the two Shu, the situation within the red wall is destined to be stirred up by two unexpected souls, causing different storms.