Re:Zero

Re:Zero − Starting Life in Another World (Japanese: Re:ゼロから始める異世界生活, Hepburn: Ri:Zero kara Hajimeru Isekai Seikatsu), often referred to simply as Re:Zero and also known less commonly as Re: Life in a Different World from Zero, is a Japanese light novel series written by Tappei Nagatsuki and illustrated by Shinichirou Otsuka. It started serialization as a web novel on the user-generated website Shōsetsuka ni Narō in 2012. 43 light novels, as well as six side story volumes and thirteen short story collections have been published by Media Factory under their MF Bunko J imprint. The story centers on Subaru Natsuki, a hikikomori who suddenly finds himself transported to another world while on his way home from a convenience store.

The series' first four arcs have been adapted into separate manga series. The first, by Daichi Matsue, was published between June 2014 and March 2015. The second, by Makoto Fugetsu, has been published by Square Enix between October 2014 and January 2017. The third, also by Matsue, was also published between May 2015 and September 2019. The fourth, by Haruno Atori, with composition by Yu Aikawa, has been published since September 2019. Additionally, Media Factory has published two anthology manga with stories by different artists. In March 2017, game developer 5pb. released a visual novel based on the light novels.

An anime television series adaptation produced by White Fox aired from April to September 2016, starting with an hour-long first episode. Two original video animations (OVAs) were released in October 2018 and November 2019. A second season aired in a split-cours format, with the first half airing from July to September 2020, and the second half airing from January to March 2021. A third season also premiered in a split-cours format, with the first half airing from October to November 2024, and the second half airing from February to March 2025. A fourth season is set to premiere in April 2026.

The novels and all three manga adaptations are published in North America by Yen Press. The overall series (light novel and manga volumes) had over 13 million copies in circulation by March 2023 (including digital versions), while the anime series has sold more than 70,000 copies on home video. The light novels have been praised for their fresh take on the "another world" concept, fleshed-out characters, complex world and lore, and thought-provoking topics and themes.