Toshirou Hamamura

Based on the horror game Ao Oni by noprops. Five members of the cultural anthropology club at an old western-style school are trying to come up with ideas for their presentation at the school's culture festival, when they find a collection of folk tales gathered by a student in their club 40 years ago. They realize that the mysterious Bellflower Oni that appears in the folk tales may be the basis for the popular free game Ao Oni, and decide to make that their theme. They manage to make contact with the author of the Ao Oni game, but he dies mysteriously soon afterward. The club members become suspicious at the author's death and began to investigate on their own, but encounter a secret they never should have touched: a secret underground prison in the school. For some reason all the fire doors at the school are locked, and they are trapped in the school. The sound of the strange footsteps they hear soon turn to their screams...A new tragedy of the Ao Oni is about to begin.

「らき☆すた」「かんなぎ」の山本寛監督が、仙台を舞台にアイドルを目指す7人の少女たちの姿を描く青春アニメーション。仙台の弱小芸能プロダクション「グリーンリーヴス・エンタテインメント」の社長・丹下は、最後の所属タレントに逃げられてしまい、次の手としてアイドルユニット結成を思い立つ。社長の無茶ぶりにしぶしぶ町にスカウトへ繰り出したマネージャーの松田は、かつて国民的アイドルユニット「I-1クラブ」でセンターを務めながら、ある事情で芸能界を去った島田真夢と偶然出会う。そうとは知らずに島田の歌声にほれ込んだ松田は、彼女に声をかけるが……。劇中のアイドルユニット「Wake Up, Girls!」の7人は、オーディションで選出された新人声優が務め、実際に「Wake Up, Girls!」を結成してCDデビュー。また、劇場版の公開と同日にテレビシリーズもスタートする。