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The Original Nightmare Curse, an eldritch entity born from this world's life itself, emerged from every single accumulation of fear, from the most primordial bacteria to the most advanced living beings, such as humans. This planet originally had no life, but through a series of coincidences and the right conditions, life was born, a spark ignited by countless chemical reactions within the boiling seas.
From this spark, life expanded into countless other living beings through eons. Despite taking so long to evolve to this point, every lifeform, even the most primitive, possessed an instinct: the desire to live and the fear of death. Live to reproduce, live to not die, eat to not die, and more.
Death was the end, and every living being feared death. This fear became a force, generating a chemical reaction within these living beings. A tiny black particle was formed, unique to this dimension. This small particle had nowhere to go, as no other particle could assimilate it.
