Mr. 12

Mr. 12 (ミスター・トゥエルブ, Misutā Tuerubu) is the partner of Miss Saturday and a Frontier Agent in the Baroque Works rankings. He was first mentioned by Nefertari Vivi, who explained how Baroque Works was organized to the Straw Hat Pirates. Neither him nor his partner are seen in the series. His number (higher than 10) means he is not much stronger in the Baroque Works number system than the Billions.