Dark Cultivation: Starting from the Bottom and Becoming a King Step by Step

This is a world of chaos and despair. The upper-level immortal cultivators who claim to be human beings rule everything and possess absolute power. People are divided into three, six or nine grades, and the "humans and animals" at the bottom are the fuel that runs this society. Their hearts, livers, spleens, lungs and kidneys, skin, bones, brains and limbs, every organ will be used without wasting any, and will be made into magic weapons or used as feed. Immortal cultivators devour the lower classes while also devouring each other. They are plotting and plotting, morally corrupt, and have no moral integrity. Every day, countless people are born and countless people die. Complete madness and absolute chaos suppress the entire world. The protagonist, Luo Kang, was brought into this desperate world due to his great luck. Without the blessing of system and other plug-ins, his start was better than that of humans and animals. Cultivation? Let's survive tomorrow first!