I Devoured the Gods' Cultivation and Became Invincible

Transmigrated into a fantasy world, with a kill-and-level System, satisfying slaughter, crushing enemies above his level, and rapid breakthroughs. After killing a target, the System forcibly extracts all of their cultivation essence, refines it, and pours it directly into the protagonist. No meditation or cultivation required, no bottlenecks, and no experience bar to fill. The stronger the foe he kills, the more powerful the cultivation poured into him. Killing enemies above his level floods him with massive amounts of cultivation.

Core appeal: A modern man transmigrates as a good-for-nothing and binds himself to the Godslayer Cultivation Extraction System. By killing demonic beasts and enemies, he plunders their cultivation and instantly breaks through realms. No need to toil over pills or spirit stones: kill people to seize their cultivation, slaughter beasts to devour their essence, repay every grudge, and play the pig to eat the tiger. The story levels up at breakneck speed, with no frustrating plotlines. A burned-out office worker transmigrates into a sect's good-for-nothing disciple. On the brink of death, he awakens the [Myriad Spirits Devouring and Infusion System]. By plundering his enemies' cultivation, he grows stronger at an incredible pace, sweeps aside opponents inside and outside the sect, quells a beast uprising across the dynasty, and ventures into the Ancient Nine Domains. He uncovers the truth behind the System and the gods from beyond the domains, then ultimately devours the gods' cultivation and ascends to supremacy over all the heavens.