Years after Anon appeared in Equestria, Sunset Shimmer used a spell to steal every human's names and special talents, to gain unrivaled magic powers. Now everybody's name is literally just ’Anon’. People aren't happy about losing their names.
And Twilight can't use her magic, after the Elements of Harmony turned into the Elements of Anonymity.
Using what they learned from the otherworldly Anon, a nerdy Anon plans to stop Sunset Shimmer, with the help of a group of five friends.