In the deep inner garden of the palace, with its towering red walls, the sincerity and years of countless women are buried. Jiang Xueci, the daughter of a general, was forced to enter the palace. She was cold-hearted and did not seek honor and favor. She just wanted to live a stable life. However, because of her outstanding family background, she became a pawn in the game between various forces. Emperor Chu Jinyan lives in the ninth level, with a deep palace. He has spent half his life in the court and the harem. He seems to be cold and unfeeling, but there is a loneliness that no one can see in his eyes.
When they first met, they tested each other, and gradually became involved as they got along. The battle in the harem is getting closer and closer, and frame-ups, plots, and power schemes follow one after another. The two are repeatedly pulled between suspicion and mutual defense. Jiang Xueci was forced to lose her innocence and rely on resourcefulness to protect herself and survive; Chu Jinyan was in a dilemma between the power of the emperor and the love of his children. The snow falls on the palace steps, and the fire burns away the false feelings. After the prosperity is gone, in the deep palace, a past entangled with intrigues, love, hate and involuntary control finally turns into a long palace poem for future generations to sigh.