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The whale swallowed the present world, and the human race was in trouble. The boy practiced the "forgetfulness technique" at the cost of his memory to prevent the catastrophe! Will they live together in the face of adversity, or will they forget each other in the arena?
Source: MyAnimeList
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Availability may vary by region.
Top-rated action anime ranked by score.
Top-rated adventure 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.
