Histoire (イストワール Isutowāru) is a Tome from the Hyperdimension Neptunia franchise, who personifies a book which holds the history of Gamindustri (or Gamarket). Her size, appearance, and role may vary from one dimension to another. She is set to be featured in the PlayStation Vita game Chou Jigen Taisen Neptune vs Sega Hard Girls - Yume no Gattai Special.