I Became an Immortal by Grinding Chickens in the Cultivation World?!

When a burnt-out office worker transmigrates to a dying village at the edge of the cultivation world, starvation seems inevitable—until a mysterious dungeon system activates. Now armed with bizarre instance dungeons that drop legendary loot from the humblest monsters, our protagonist grinds chickens for immortal-grade rewards and transforms from zero to hero. Who knew the path to immortality started with farming poultry bosses?