The male protagonist of the Shadow Demon Spider clan hatches and is regarded as waste by a bunch of sisters because he is a male, thrown into a toxic mine cave to await death. Awakened in a desperate situation, the strongest devouring evolution system drives him to grow crazily strong by devouring ores and demonic beasts. Feigning weakness to develop quietly, he sweeps through strong enemies all the way, tears apart enemies with his own hands, fights against the Heavenly Court and extraterritorial demons, counterattacks all the way, and finally ascends to the Emperor of All Demons, adventuring into higher planes.