Chizuko is a normal otaku girl in Niigata Prefecture. She’s obsessed with Berry Blossom, a magical heroine who protects the city. But the battles with her inept nemesis, Chroma, have become so lackluster that they’re not even worth watching. Chizuko wants to see Berry’s full power, a desire that quickly leads this seemingly timid girl down a path of evil.

[Source: Crunchyroll]

When she doesn't feel well, when there's a test, when she doesn't want to go to school... I take her place. I'm her replica. I'm not meant for anything else. But that changed when I fell in love. I wear my hair up so the boy I fell for knows it's me. We skip school and promise to meet again tomorrow, and every day after. I'm her replica. Everything about me is borrowed and empty, but my heart is mine.

[Source: Yen Press]