Earth

Planet where Human first developed and home planet of Marco (Player Character).
Multiple Sibling species attempted to uplift humans in the past but all attempts seemingly failed. While uplift had been canceled with other species who still remained in the Galaxias, Earth became a special case where knowledge of intelligent life was lost after the failed uplift rendering the planet and species on it illegal to contact by members of the Galaxias.
The Parents tell Amicus that Earth was an experiment, a successful one at that, and that it is Marco's job to bring it into the Galaxias.