In the city of Chang'an, the Shen family and the Su family have been friends for generations. One is a leading civil servant, and the other is a family of military generals. They have arranged a marriage for their legitimate daughter Shen Qingci and his legitimate son Su Muyan since they were young. The two have been together since childhood, listening to the rain under the eaves, practicing calligraphy in the courtyard, and making a promise to never leave each other under the peach blossom tree. They are a pair of childhood sweethearts envied by everyone in Chang'an. However, on the eve of Shen Qing's resignation and hairpin, the Shen family was suddenly framed and exiled for the crime of collaborating with the enemy and treason. They fell from the clouds into the quagmire overnight. In the chaos, Shen Qingci was rescued by his loyal servant and hid in the world, cutting off all contact with the Su family. Su Muyan was training at the border at that time. He heard the bad news on his way back and was heartbroken. However, due to family constraints and the oppression of the central government, he was unable to pursue it immediately. Over the next few years, Su Muyan worked step by step to gain a foothold in the court. While secretly investigating the Shen family's injustice, he sent people to search the world, just to find the beautiful image of his youth. From Chang'an to Jiangnan, from Saibei to Lingnan, as time goes by, the original intention remains unchanged. When he finally found Shen Qingci, a medical woman, in a small town in the south of the Yangtze River after going through many trials and hardships, she had already washed away her beauty and did not dare to recognize her former lover again. The pain of the past, the gap in identity, and the conspiracy of the court have become an insurmountable gap between the two. Su Muyan calmed her guard with gentleness and patience, guarded her integrity with firmness and perseverance, and worked together to uncover the truth about the family changes that year and clear the wrongs for the Shen family. After many hardships, the childhood sweethearts, who had been separated for many years, finally regained their original intentions after the storm, renewed the promise they made under the peach blossom tree, and spent the rest of their lives together.
