Luka, the eldest son of the Duke of Flores, the only Duke in the Kingdom of Euronia, is widely known as the most beautiful man in the kingdom. However, because he was spoiled by his father, he grew up to be selfish and ferocious. His father, troubled by his behavior, went to his brother, the King, for advice, and was relieved when he was recommended to marry the strong knight commander to his son. Coincidentally, Luka lost all of his memories up to that point and was in a terrible situation. A novel with a happy ending about Luka, the beautiful Duke’s son who has lost his memory, and William, a handsome knight commander.