Fifty-year-old home appliance repair shop owner Zhou Tielin goes on a blind date with Shen Ruolan, the chairwoman of Jinglan Smart Home Group who is disguised as an impoverished cleaner. Zhou Tielin unconditionally takes out all his savings to help the "destitute" Shen Ruolan, and the two have a flash marriage. After marriage, Shen Ruolan continues to hide her identity to experience ordinary life, helping out at the repair shop. When Zhou Tielin's bid for the group's after-sales maintenance project unexpectedly wins, Shen Ruolan's true identity is also accidentally exposed, causing Zhou Tielin to grow distant due to feeling deceived. Just as Jinglan Group falls into crisis after being cut off by Wanhui Group, coincidence leads the Wanhui chairman, who had once received kindness from Zhou Tielin, to step in and resolve the crisis. The two clear up their misunderstandings and reap happiness.