This article needs attention from an expert in Japan. Please add a reason or a talk parameter to this template to explain the issue with the article. WikiProject Japan (or its Portal) may be able to help recruit an expert.(February 2009)
Gaiden(外伝?, pronounced [ɡaideɴ]) is a Japanese-language word meaning "side story" or "tale", used to refer to an anecdote or supplementary biography of a person. The use of gaiden is commonly used in popular Japanese fiction to refer to a spin-off of a previously published work that is neither officially considered a sequel nor a prequel. However, some gaiden are retold stories in the perspective of a different character, similar to that of a flashback.