Valerius was born as a prince of the Melvray Empire, but he was hated as the "Prince of Mischief" and imprisoned in a tower. He was raised to devour the books in the tower, but finally an assassin's hand reaches out to him. Valerius survives, but vows revenge against the Melvray Empire and attempts to flee the country. Along the way, he meets the Duchess of Savarta, Princess Lydia, and his destiny is set in motion. He becomes her chief strategist and begins his revenge against the Melvray Empire with his wits and wiles!