Miss Thursday

Miss Thursday (ミス・サースデー, Misu Sāsudē) is the partner of Mr. 11 and a Frontier Agent in the Baroque Works rankings. She was first mentioned by Nefertari Vivi, who explained how Baroque Works was organized to the Straw Hat Pirates. Even though she and her partner Mr. 11 are part of the number agents system, her rank partnership (higher than 10) makes her not much stronger than the Billions.

Even though her partner, Mr. 11, makes an appearance in the story, Miss Thursday herself is never seen.