Chizuko Date is an otaku girl who lives in a city in Niigata Prefecture. Chizuko 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...