After the spatial rift incident resulting in the complete destruction of Earth, this planet was discovered, and would go on to be the replacement.

You've transferred to a new place of residence, the highest quality underground city, you should get a job to earn credits to get food and housing. Though be careful, even though the city is high quality, it isn't 100% safe, syndicates can be found throughout the city, though the chance of meeting one isn't that high.