In the Joseon era, many people married and spent their lives with people they had never met. For this reason, sometimes they would not even know that their spouse had been swapped. And what if the spouse was a man! A light comedy of newlywed life, a couple became the victims of their parents' political marriage, only to find out at the wedding that the bride was a man? However, they developed a subtle attachment to each other as they slowly got to know each other...