The very name "Terror-Croc" strikes fear into the hearts of all who hear it... This is an era where every creature has grown to gigantic proportions-an era when Earth belongs to colossal beasts, and above all, an era of terror. On land, there are Tyrannosaurus rex and Stegosaurus; in the oceans, plesiosaurs, mosasaurs, and elasmosaurs; and in the skies, Pteranodon... All of them are the rulers of the seas, lands, and skies that have ever graced Earth's known history... Being reborn into such a world brings endless pressure-and thrills! Even while struggling to survive in the cracks of this world, I'm not just going to survive-I'm going to live a spectacular life, live a long life, and ideally-live for another 100 million years. Let's journey back to prehistory together, witness the lost age of giant beasts, explore the mysteries of the universe...