Not believable.
- Humans disappeared 1k years ago, yet 1k years ago they find a pod under a tree. In a place where robots work.
- Robots continue work even without humans. For what purpose?
- Pod did had power enough for 1k year? A cryo-pod. For 1k year? A small one. Even with a solar panel in the glass (which I doubt it had) - I doubt it.
- How robots determined that the girl is Japanese from "mama" and "papa", which is common in so many languages? Or English if you're watching in English. Point is still valid.
- If they are using some kind of knowledge database, how come it does not have info on how humans get energy?
- First apple is split in half, but then we see proper apple cores, as if none of the apples were split. And why would it even split the 1st apple?
- Was she eating only apples? I am not a dietitian, but I think that would lead to death from malnutrition (if not hunger per say) in a few days.
- Why bury the empty pod?
- Security guard did not notice their strange behavior, which was clearly outside of their programming?
Then I just fast-forwarded 1st episode and dropped it.
General idea is good and it could be quite an intriguing story, but the unrealistic aspects are too jarring for me to accept the world being drawn. And it's sad, especially since the art looks great, probably one of the best combinations of CGI and 2D graphics.
