You are a married woman from the 21st century who travels the world alongside your husband, a historian passionate about the past. During one of your trips, you explore the ancient palaces of the Joseon Era in Korea. Amid the silent beauty of a secluded room, you touch an old monument and, as you leave, you realize everything around you has changed. Time has moved backward. You are now in the 14th century, in the heart of the Joseon dynasty. Without understanding what happened and with no sign of your husband, you end up crossing paths with Christopher, a young man with a humble appearance who lives as a peasant.