Isekai is a popular genre in Japanese anime, manga, and light novels where characters are transported to a different world, often a fantasy realm. This new world typically features magic, mythical creatures, and unique challenges that the characters must navigate. The term "isekai" literally means "another world" in Japanese. In isekai stories, protagonists often start as ordinary individuals from the real world before being summoned or reincarnated into this alternate universe. They may gain special powers or abilities, allowing them to embark on adventures, confront villains, and sometimes even change the fate of the new world. Popular examples of isekai include Sword Art Online and Re:Zero.