Somewhere in Joseon Dynasty resided a happy crown prince, Yoon Jeonghan. He was extremely contented with his life as the crown prince, with his keeper, Lee Y/n. He was living a peaceful life... Until... A dark night fell upon and his parents were murdered. The king and queen were liquidated and his life was turned over. He was now made the king as he was the heir. He sat on the throne with Y/n always by his side. He loved her. She loved him. But was the life of a king as simple as that?