So, the earthstranded sanctuary is basically a massive network of alleyways and sewers, and the people who inhabit it are ASCII-oids that somehow ended up on earth, and most don't know how they got there
Almost everyone there is scared of and/or hates humans
It's similar to the slums from Stray
and El Cien here, is a human who believes that he is an ASCII-oid, he's actually quite chill and stuff but he's extremely mentally ill