Young embroiderer Su Jinnian is dumped by her fiancé while her father falls seriously ill, forcing her to put down her needle and thread and head to the city to make a living. Using her family's ancestral embroidery techniques, she restores damaged national treasures and astonishes the world with her original three-dimensional, double-sided, multicolored embroidery. Facing the challenges of industrialization and sabotage from her competitors, she remains committed to traditional craftsmanship. She leads the women of her village in establishing a workshop, helping them escape poverty and build prosperous lives. Eventually, she creates a national gift using her innovative hair-thin thread light-and-shadow embroidery, becoming the youngest inheritor of intangible cultural heritage while also finding true love. With every stitch and every thread, she embroiders a splendid life.