In the twelfth year of Yongchang's reign, Su's embroidery workshop in Jiangnan was destroyed by fire. Only Su Wan, the embroiderer, survived with half a residual seal and her unique skill of "Qiansi Yin". Seven years later, because her facial features resembled those of Zhenbei General Lu Lin's late wife Shen Qingyue, she was brought into the general's palace by a marriage decree and became a loveless and disrespectful substitute.
The mansion was deserted, and Su Wan hid her desire for revenge. She used the remote west wing as a base to secretly pursue clues about the "Tiger Head Golden Seal" related to the Su family's murder case. She sneaked into the library and accidentally discovered Shen Qingyue's diary, and was shocked to learn that her father Shen Dai planned the massacre of the Su family in order to seize the "Qiansi Yin" and offer it to the imperial concubine. And a forged account book pointed the accusation at Lu Lin, causing a bloody feud between the two.
As the investigation deepens, the intervention of King Zhao's forces, the coveting of the concubines in the palace, and the prying eyes of the palace staff make the situation more and more complicated. Su Wan and Lu Lin went from mutual suspicion and cold confrontation to being forced to cooperate because of a common enemy. Through trials and crises, they gradually saw each other's sincerity and the truth of the case - Lu Lin was actually a framed victim and had secretly protected the Su family orphans for many years.
At the emperor's birthday banquet, Su Wan presented "Ten Thousand Miles of Rivers and Mountains Embroidery" in the name of "Mother of the Night" and revealed her unique skill of "Thousands of Silk Drawings", completely detonating all grudges. After the truth came to light, she chose to leave decisively, leaving Lu Lin to pursue her in endless regret. This entanglement that started as a substitute, trapped in hatred, and finally sincere, continues to write a long aftertaste of redemption and waiting in the years of mountains and rivers.
