User blog comment:Herbadra/THE 100 : saison 4 épisodes possibles/envisagés/@comment-27794543-20160805025321/@comment-27794543-20160806042234

Fanfics are stories written by fans, for example the script you wrote above. Archive of Our Own (AO3) is a website on which people post their stories. "Archive" is part of the website name. It refers to the site being an archive of fanfics, i.e. a collection of fan-written stories. You can check out the organization's French FAQ here.