Acro Trip

Chizuko Date is an otaku girl who lives in a city in Niigata Prefecture who is obsessed with Berry Blossom, the magical girl who protects the city. However, Chroma — the leader of the local evil organization Fossa Magna — is inept and weak, so hardly anyone else cares about Berry Blossom and Chroma's frequent battles anymore. Chizuko vows to shine a light on the magical girl's exploits — and this fervent desire takes this seemingly shy middle school girl down a dark path filled with strange folks ... <em class=de-emphasized>(from manga)</em>

Synopsis from Anime News Network