Prompto Argentum (プロンプト・アージェンタム, Puronputo Ājentamu) is a character from Square Enix's Final Fantasy series. He first appears in the anime web series Brotherhood: Final Fantasy XV as a schoolmate of the crown prince of the Kingdom of Lucis, Noctis Lucis Caelum. In the 2016 mainline title Final Fantasy XV, Prompto accompanies Noctis on his journey by road to meet and marry a noblewoman from another nation, and fights alongside him as they oppose the Niflheim empire. He is the title character of the post-launch downloadable content (DLC) pack Episode Prompto, which delves into the character's backstory and origin as a pawn of Niflheim.