

ノラゲキ! • Norageki!
In an isolated prison, there are only four prisoners and a cat. One day, a power outage opens all the locks and all of the prisoners are released. However, all of the guards are nowhere to be seen and there are no exits. An extraordinary event occurs in response to an old man's strange behavior.
Source: MyAnimeList
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Availability may vary by region.
Curated recommendations for fans of Five Numbers!.
Other anime produced by Sunrise.
Top-rated mystery anime ranked by score.
Top-rated sci-fi anime ranked by score.
Chronological viewing order for franchises with movies and OVAs.
Streaming platforms and availability for popular anime.
Where to start reading once an adaptation ends.