Shen Qinghe brought a seven-colored floating light brocade cheongsam woven personally by her grandmother to attend the 70th birthday banquet of her boyfriend Gu Chenzhou's grandmother. Unexpectedly, Gu's mother Liu Ruyan despised her humble background, publicly destroyed the birthday gift, and Wang Siqi took the opportunity to force a marriage. Gu Chenzhou stepped forward to protect her, but everyone kept pressing forward step by step. As the origin of the cheongsam was uncovered, the sisterhood and past factory-saving events of the two grandmothers in their youth surfaced, and a birthday banquet completely changed the Gu family's view of Shen Qinghe.