Reborn: Infinite Evolution from a Cockroach

Zhang Lang, a 28-year-old programmer at an internet company, dies from overwork and is reborn as a 2-centimeter-long cockroach. Starting from the sewers, he struggles to survive by using a system to devour garbage, rats, and mutant insects. After a meteorite event, Earth's environment changes drastically, mutant creatures run rampant, and humans establish survivor bases. Zhang Lang evolves rapidly, growing over a meter in length and gaining abilities like carapace hardening, rapid reproduction, and summoning minions. He befriends Lin Wei, a落魄 biologist hunted for studying mutants, who discovers his intelligence. Drawn into human conflicts over mutant resources, Zhang Lang enters an ancient ruin to save Lin Wei, triggering a teleportation array that sends them both to another world.