She vowed not to marry and disguised herself as a man to save her endangered family business. However, she formed an alliance with the sixth prince who was incognito to investigate the case. When he fell into the Yellow River, he cut the rope to save his life. When he came back, he said dumbly: "If you don't want to get married, we will become sworn brothers." He was willing to be demoted to a commoner, and she finally dared to believe that there was someone in this world who loved her, not because of the marriage contract, but because she was born with you. On a red candle night, she broke off her hairpin as a contract: "If you want to betray me, use this hairpin as proof."
