Why Does Nobody Remember Me in This World? (なぜ僕の世界を誰も覚えていないのか？, Naze Boku no Sekai wo Dare mo Oboeteinainoka?) is a Japanese light novel series written by Kei Sazane with illustrations by Neco. It was published under Media Factory's MF Bunko J imprint from July 2017 to August 2020. A manga adaptation illustrated by Arikan was serialized in Media Factory's Monthly Comic Alive manga magazine from February 2018 to October 2025. An anime television series adaptation produced by Project No.9 aired from July to September 2024. Source: Wikipedia (en)