This is an AU about a post-apocalyptic world. Error is an experiment that was considered unsuccessful (he did not regain consciousness). But somehow, he woke up centuries later, when nothing remained of humanity. He had to survive in an unfriendly environment, but luckily, he turned out to be very smart. Blueberry is a monster from the settlement. After humanity disappeared, the barrier collapsed, allowing monsters to emerge. Blueberry is just a curious skeleton, he really wants to find out what happened to people, which is why he often leaves home. But don't worry, Blue is an experienced traveler and won't be easy to eat.










