 Loosely based on the historical figure Chevalier D'Eon, the story follows the exploits of D'Eon de Beaumont as he attempts to solve the mystery behind his sister's murder while serving as a knight of France.The series was initially licensed by ADV Films, but was one of over thirty titles that were transferred to Funimation Entertainment.The series features one opening theme and one ending theme throughout all 24-episodes.