A cold, stone-faced department manager who barely speaks suddenly proposes marriage to his subordinate, Han Daeri. The plan is simple: a fake marriage for appearances before she transfers to the Paris branch. But when the transfer is indefinitely postponed after a terrorist incident in Paris, the two are forced to continue living as newlyweds. Things spiral further when his famous fortune-teller grandfather insists they must have a child together within the year, leading to a chaotic battle between those trying to force the couple together and the fake couple desperately trying to avoid it.