Fighting Fairy Girl Rescue Me: Mave-chan
Sentou Yousei Shoujo Tasukete! Mave-chan · 戦闘妖精少女 たすけて！メイヴちゃん
Synopsis
Rei goes to an anime convention and ends up in a world created by the desires of anime fans. Rei doesn't know how to get back and the world starts to collapse because the convention is coming to a close. (Source: AniDB)
Studios: Studio Fantasia, Bandai Entertainment, Bandai Visual