In the seventeenth year of Chengqing's reign, Princess Yong'an was born with auspiciousness. She was Dasheng's most dazzling pearl. On her tenth birthday, she chose Chang Yanci, a secret guard who had experienced the trial of blood prison, as her companion. One is a golden branch above the clouds, and the other is a secret guard in the mire. Their different identities in the clouds and mud destined this relationship to be full of thorns from the beginning.
Within the palace walls, she was arrogant and teased, while he abided by the rules, and the deep love in his heart was repeatedly pulled between the rules and etiquette; during Yunzhou's exile, the shackles of his identity as a princess and a guard were removed. The two had a deep love for each other in the daily fireworks and life and death tests, but they still could not escape the shackles of reality. Beidi invaded, and the Burial Bone Pass became the place agreed upon by the two of them. In exchange for the qualification to be with the princess, Chang Yanci resolutely rushed to the dangerous pass with a near-death experience and asked for a betrothal marriage in exchange for his military merit. However, the emperor's promise hid a murderous intention, and the good news on the front line came with a conspiracy. Chang Yan resigned and was buried in a bloody grave, leaving Yong'an to wait in the deep palace. When the fate of getting married once again pushed Yong'an into a desperate situation, she experienced deception and betrayal, and finally burned her life away in pursuit of freedom and love. Many years later, a belated last letter revealed the unspoken deep feelings and regrets during the war. The love that started from the palace wall and ended in the wilderness, only the cinnamon in the Bone Burial Pass, year after year, witnessed the old friend's unfinished concern.
Concept: Love and regret under the shackles of identity. Even if life and death separate us, love can still travel through time and space.