IF (アイエフ Aiefu) is a Maker from the Hyperdimension Neptunia franchise, who personifies Idea Factory (the parent company of Compile Heart, the main developers of the HDN franchise). She is set to be the co-protagonist of the PlayStation Vita game Chou Jigen Taisen Neptune vs Sega Hard Girls - Yume no Gattai Special, alongside the game-original character Hatsumi Sega.