Yan Fei, CEO of Love Science Marriage Agency , usually uses big data to help countless single men and women find their best lives Partner, but when Yan Fei accidentally reunited with her brother next door, who had been in love with her for many years, the handsome ex-husband returned to China to seek reconciliation. When Xingdong meets big data love, who is the right person? Will Yan Fei bravely choose the brother next door who makes her beloved, or will she reunite with her ex-husband who has a personality after running-in? A piece of the most romantic healing relationship is the beginning of redemption.