Years ago, Connor Hess and Estella Barrett had a one-night stand after being drugged. Seven years later, they unexpectedly meet at the city hall when Estella was resolving her daughter's household registration issue. They decide to get married. Connor helps Estella solve her work problems, and Estella, in turn, makes efforts to resolve Connor's family disputes. After overcoming various obstacles, they start a new, happy life with their daughter.
Siena, in a fit of anger, divorces Jaydon because he was irresponsible in their marriage. After the divorce, her father keeps nagging her to have a child, so she decides to find a contract boyfriend: Melvin. Melvin has a strange quirk: he insists that Siena wears a blindfold while having an intimate encounter. As they go through the contract, she starts to doubt his true identity. Finally, she discovers that the person who has been with her all those nights turns out to be someone she knew well.