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Within the interior of the crack that led to the world of beasts, enormous rivers had the size of seas, the sky was vast and near-boundless, little hills were enormous mountains like Mount Everest, and real mountains reached the heavens and the outer space, oceans were so vast they seemed endless, filled with islands that were as big as continents… it was an immense, vast, and wondrous world whose the little earth could not even compare.
Within such a gigantic world there were beasts, enormous beasts that had yet to invade earth… mostly because they had not noticed the small crack that had emerged, too small for the beasts to actually notice that there was another, the smaller world they could enter and devastate as much as they wanted.
Check "The Protagnist's Sister Is Actually the Strongest"!