When the egg was rolled in her arms, the dragon was born. A full-fledged baby-sitter. One well-bred dragon prince of one of the ten emperors. Adele is a girl who grew up in an orphanage and came to her uncles house. While being in charge of her aunts farm for nine years and taking care of all the insane things on a cow ranch, she accidentally finds a large egg in a tree hole. A child who wakes up from the egg follows Adele like a parent, and Adele gives the child a name, Sigmund. In fact, Sigmund, who must be the Emperor of the Empire, stays with Adele in the form of a child, sealed with his powerful mana sealed. Grand Duke Ernest and Archmage Jensen try to find the egg of the lost dragon. Lushen, head of the Imperial knighthood, assisted by Zion, daughter of Grand Duke Ernest, who has grown up as a man since childhood helps Adele. Adele and Sigmund finally enter the imperial palace where they were awaited. A magical healing love story unfolded by two people.