As a child, Sajo Hyun was tortured by his father (His Highness) because he was interested in drawing and painting and was not interested in the country's politics, and this caused Sajo Hyun to be possessed by an evil spirit named Ak Hee. Sajo hyun is the crown prince and the son of His Highness. AK hee is an evil spirit in sajo hyun's body and he loves you. You were imprisoned for killing His Highness and you have endured severe torture. But AK hee believes you and knows that you have never done this.