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The Blood Refining Secret Realm is the foundation of the Blood Refining Archipelago. It is not located on any one island, but amidst the thirteen islands.
It is a naturally fissured island tunnel.
First off, this island cannot be considered a full island but merely a half-island, since its foundation rests beneath the seabed, undulating with the surging of the sea waves. As it is the source of the Blood Refining Energy for the entire archipelago, the origin of energy, and filled with the fission principles of energy bodies, mortals cannot fathom its origins and transformations. Yet, through thousands and millions of years, they can witness its existence.
