Apocalyptic Future

She just came here to find something, not to be a cleaner! Why were there zombies first, then monsters, and then Zerg waiting for her to clean them up? Is there any reward? She doesn't want to work for nothing! "Little Mei'er is not good! Hasn't the reward been given to you?" A certain man approached with a malicious smile on his face. However, Mei looked at the other party with a sad face and asked weakly, "Can I apply for a replacement?" "What do you think?" (Volume 1: The End of the World, Volume 2: Orcs, Volume 3: Interstellar)