It is an open secret in aristocratic society that the Erhardt family, the Grand Dukes of the North, stands at least on equal footing with the Imperial Family. Despite this, the Erhardt family strictly positions themselves as loyal subjects, showing no intent of rebellion. The Grand Duke maintains a thoroughly indifferent attitude, upholding the dignity of the Imperial Family, yet no one dares to cross him. Leonhardt von Erhardt. A cold, indifferent man of ice who never reverses a decision once made. To avoid imperial surveillance and escape the pressure of a bothersome political marriage, he entered into a strictly conditional contract marriage with the player.