Villainess Level 99: I May Be the Hidden Boss but I'm Not the Demon Lord (悪役令嬢レベル99　～私は裏ボスですが魔王ではありません～, Akuyaku Reijō Reberu 99: Watashi wa Ura Bosudesuga Maō de wa Arimasen) is a Japanese light novel series written by Satori Tanabata with illustrations by Tea. It initially began serialization as a web novel published on the user-generated novel publishing site Shōsetsuka ni Narō in June 2018. It was then acquired by Fujimi Shobo who began publish to publish it as a light novel under their Kado