I Gave Up My Throne To Take Yours

Prince Arthur spent ten years as a hostage in Crando to keep the peace. He came home to a father with no use for him and a brother who framed him, and he died in exile. Then he woke in his past. This time he refused the crown, crossed to Empress Diana, and answered his brother's pursuit with an army and the firearms he built himself. He took the cities, then the capital, and made his father hear the truth.