Su Nianxia, a top designer, receives a letter from her hometown informing her that the Su family's embroidery workshop, left behind by her grandmother, is facing demolition. She gives up her lucrative job and returns to Xiuli Town, only to find that a businesswoman named Lin Wanqiu is passing off machine embroidery as authentic Su embroidery and aggressively taking over the market. The long-lost manual of split-silk and chaotic-needle embroidery is incomplete, and the truth behind the injustice suffered by her grandmother years ago begins to surface. Picking up her needle and thread once again, Su Nianxia fights back against deliberate suppression while uncovering long-buried secrets. After overcoming countless crises, she restores ancient embroidery, recovers the missing embroidery manual, publicly reveals her family's ancestral techniques, wins the International Golden Needle Award, and establishes an embroidery cooperative, bringing the dormant traditional art of Su embroidery back to life.