Tailor Gu Qinghe, upon leaving her cousin Su Manhua's Qizi Haute Couture, takes on work in the corner of Aunt Mei's dry cleaning shop. Relying on seamless mending, bias cutting, and gambiered canton gauze dresses to win customer trust, she establishes Hexu Custom. After experiencing peer competition and pattern leakage, she decides to handle it legally, and brings Atang along with apprentices to pass down the craft, letting needle and thread illuminate those who come after.