On the eve of her daughter's wedding, Lin Xiuhe discovers that her seat has been replaced by her husband's first love, and her biological daughter actually serves tea to someone else at the wedding rehearsal, calling her 'Mom'. Years of devotion exchange not for respect, but for a pre-arranged bill and a hidden identity. When everyone defaults that she will continue to shell out money and compromise, Lin Xiuhe decides not to stay silent anymore. The wedding can go on, but the cost of this wedding should no longer be borne by her alone. From the mother's seat to the banquet expenses, from family dignity to years of sacrifice, she wants to make everyone see clearly who is truly the person supporting this family.