After dying unexpectedly, Xiao Teng is reborn as a two-meter-long reticulated python and bound to a Devouring Evolution System. Seven days later, spiritual energy will revive across the world, wild beasts will mutate, and human civilization will collapse. With his SSS-rank innate talent, Endless Devouring, Xiao Teng continually hunts powerful enemies and devours them to evolve, transforming from an ordinary python into a Black Fiend Thunder Python, a Mystic Lightning Berserk Flood Dragon, and a Thunder-Scaled Cloud Dragon, ultimately embarking on the path to becoming a true dragon.