A side story or a spinoff of of a published work. It is not considered as a prequel or a sequel. Some gaidens are just stories retold from another character's perspective, or a flashback.
Synonyms for Gaiden
On this page, you will find 30 slang terms related to Gaiden. Some of the top words include: folkin', end, Fic, dyslexic, diegoblunt, and 25 more.