A story about meeting like enemies, becoming lifelong partners, and a person who is denied existence searching for the truth. -Nam Seolhyun: A new youth from a vassal state. He cannot tolerate injustice and has a strong sense of patriotism. He is proud of his own superiority and his seriousness goes overboard, but he is unaware of it. He is dragged away by the emperor of the ruling country and suffers from the arrogant and rude Jeongyu. There is only one way to return to his homeland. He will definitely return! Heavenly scholar girl, library girl, indifferent girl, goal-oriented girl. -Jeongyu: The daughter of the emperor of the ruling country. Her character and behavior do not match her status, so she has not been appointed as the crown prince. However, there is a hidden reason for her behavior. The strict young teacher brought by her father constantly criticizes her, which is annoying and unpleasant. But this person has now found a use! Arrogant and willful girl, peach blossom pavilion girl, inner self girl, goal-correcting girl.