異世界isekai
Quick definition:Isekai is a genre of anime and manga in which a character is moved to, or reborn in, another world, often a fantasy realm with its own rules.
Meaning
Isekai is a genre of stories in which a character leaves their ordinary life and ends up in another world. The character may be summoned, transported by accident, or reborn after dying, and the new world is often a fantasy realm with magic, monsters and adventurers' guilds. Some stories use settings that work like video games, complete with levels and skill menus.
Common plots include the hero who gains unusual powers, the modern person who uses everyday knowledge to succeed, and the character who must find a way home. Others play the idea for comedy or take it in darker directions. Many isekai begin as web novels or light novels, which are short illustrated novels aimed at younger readers, before becoming manga and anime.
The genre matters to fans because it has become one of the most visible trends in modern anime, with new series appearing every season. Its popularity has also drawn criticism for repeating similar setups, which has encouraged writers to experiment with twists on the formula.
Origin:The word combines i, meaning different or foreign, with sekai, meaning world, so it literally means a different world. Stories about people crossing into other worlds are old in Japanese and world literature, but isekai became a widely used genre label in the 2010s, when web novels built on the idea became hugely popular online.
Example:In That Time I Got Reincarnated as a Slime, an ordinary office worker dies and is reborn as a slime in a fantasy world. He discovers unusual abilities, befriends monsters and gradually helps build a nation. This captures the typical isekai setup: death or displacement, a new body or world, and a fresh start.
Did you know?Fans often sort isekai by how the hero arrives: summoned, transported or reincarnated, the last of which is called tensei in Japanese. A running fan joke claims that being hit by a truck is the standard way to be sent to another world.
