In the apocalypse, Liu Mang is betrayed and murdered by his ex-girlfriend, Pan Xiaoqian. He is reborn in the Beast Continent, transformed into the ancient Titan python, his destined divine beast, and awakens a Devouring Evolution System. Knowing that this world will invade reality, he devours prey to evolve rapidly while plotting his revenge. Along the way, he meets Mantianxing, a wealthy young woman who has also been reborn, and forms an alliance with her, using her resources to accelerate his growth. He lies low in King Kong Mountain, reaps the benefits of a conflict, and kills the King Kong leader. He then tricks two Tyrannosaurus rex brothers into trusting him and becomes the third-in-command of Tyrant Mountain, using their power to hunt formidable enemies and accumulate resources for evolution. Just as his strength surges and he begins planning his future with Mantianxing, their territorial allies are ambushed by a mysterious giant beast, and a new crisis suddenly emerges.