Throughout the Joseon Dynasty King that is confusing and conspiratorial Gwang-hae requests his councilor to find him a double to be able to prevent the threat of assassination. A jester who looks remarkably as the king, Ha-sun is found by HEO Kyun, and as stressed, Gwang-hae is poisoned. HEO Kyun suggests the role fill as the king until Gwang-hae recovers fully and grooms Ha-sun to check and act every bit the king. While imagining the use of the king at his very first official look, Ha-sun begins to ponder the intricacies of all these problems. Being more reassuring Ha-sun's affection and appreciation of the most minor servants slowly affects morale at the castle to get the higher. However, PARK, his opposition, notices the sudden shift and starts to ask questions.