Laughing at Me as a Servant of the Beast-Taming Sect? I’ll Prove My Way to the Great Emperor!

After transmigrating a hundred years ago, he had mediocre aptitude, was reduced to a menial servant, and had only ten years left to live! As he lay dying while protecting his beloved disciple, Chen Shi finally awakened the strongest Gluttonous Beast System! From then on, his lifespan became kindling, burning through all the heavens! 【You burn ten years of lifespan. The Beast Taming Scripture instantly reaches perfection, and you strike back on the spot!】 【You devour a Golden Core ancestor's hundred years of lifespan and channel it into an incomplete sword technique, comprehending a sword intent that shakes the heavens!】 【You devour an ancient Demon Emperor's ten thousand years of vitality and channel it into an unnamed secret art, cultivating an indestructible Gluttonous Beast body!】 【You devour countless demon gods from an entire world and channel them into yourself, breaking the limits of lifespan and becoming eternal!】 His former enemies: “Wasn't he the useless guy who was about to die? Why can't I even withstand one of his moves?!” His stunning disciple: “Master defied heaven and changed my fate for me. I will wield my sword to protect his path, serve him for life, and slay every enemy!” My name is Chen Shi. In two lifetimes, I was nothing but an ant. Now my lifespan is kindling, and gods and demons are my food! In this life, I will devour all the heavens and endure for eternity!