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The Underworld of the Sea (海の｢暗黒街」 Umi no Ankokugai?) is a deep sea area where light does not penetrate, where normal creatures are not allowed to exist. The creatures here have either had to acquire better eyesight, or, in some cases, bio-luminescence.
Creatures Encountered at This DepthEdit
- Giant poisonous jellyfish
- Carnivorous tubeworms
- All of the creatures that have been seen here so far are giant versions of real life animals that can be found in the deep sea.
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 One Piece Manga and Anime — Vol. 62 Chapter 605 and Episode 525, The Straw Hat Pirates enter the Underworld of the Sea.