Contract marriage is the trope short dramas return to more than almost any other, because it gets two strangers under one roof by the end of the first episode. The reasons vary. A CEO needs a wife to calm his board or satisfy a dying grandfather, a young woman needs money for a sick parent, or both sides want to escape an arranged match. They sign an agreement with rules: separate bedrooms, no feelings, a quiet divorce once the deal is done. Every rule exists to be broken.
The fun is watching the fake relationship turn real while both leads insist nothing has changed. Short episodes suit this well. One scene can be a public kiss staged for relatives, the next a quiet moment where he notices she hasn’t eaten. Suspicious in-laws and a leaked copy of the contract keep the pressure on.
Good contract marriage dramas treat the agreement as a real negotiation between two people who each want something. The heroine has leverage and uses it, and the slow thaw feels earned. Lazy versions skip the tension, make the hero cold and cruel until a sudden switch near the end, and forget the contract exists halfway through. The best ones also make the eventual confession cost something, since whoever falls first usually has the most to lose.