Overview: Hana and her companions discover a massive underground shelter. They find a survivor’s diary and learn the cruel fate of those who took refuge there.
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First Air Date: Jun 28, 2019Last Air date: Mar 26, 2020Season: 1 SeasonEpisode: 24 EpisodeRuntime: 24 minutesQuality: HDIMDb: 7.80 / 10 by 213 usersPopularity: 31.164Language: Japanese