Swallowing: Starting from an Earthworm and Becoming Stronger

Time travel + system + swallowing + evolution + dog + pretending to be a pig and eating a tiger Du Feng was originally a great cultivator from another world, who traveled across the continent of immortality. Unfortunately, an accident caused him to travel to Blue Star, where he turned into an earthworm. He lost all his martial arts skills and was hunted by insects. With systematic help, he began to devour and evolve from an earthworm. Unexpectedly, when Du Feng was having a good meal, he accidentally drank nuclear waste water, lost his mind, and destroyed his little life...