Seolru, a novice hunter who lives alone in the deep mountains with her elderly father, because the weather around her changes constantly depending on her emotions. One day, she goes on a night hunt to catch a badger instead of her father and accidentally shoots a person... «Father, what should I do now? I think I killed a man!» Ryun, the crown prince of Cloud Dragon, went hunting with his servants, but was caught up in the empress' scheme and wandered the hunting grounds alone. To make matters worse, he collapses after being hit by an arrow shot by Seolru. Gathering all the remaining strength, he tried to kill the killer who approached him, but even that failed... «Why did you keep me alive?. Did they tell you to let me live, because they will come and cut my throat?» But the killer who's the size of a rat in front of him is not a killer! Besides, he wasn't even a boy, he was a girl in disguise? Seolru, carrying her own sin of hurting the body of the national treasure by shooting an arrow and her father who thrust a dagger unaware of his identity, eventually becomes a trophy of war and follows Ryun into the imperial palace.. The land of dragons hidden by clouds. ‘Seolru’, a young dragon who knows how to command the sky, and ‘Ryun’, the Crown Prince of Unryong, who greedily keeps her by his side. Can the love between the two, which has just blossomed from the wrong desires surrounding the legends and oracles that have been handed down since the beginning of time, be preserved until eternity?