Lemuria

Lemuria is the massive, floating city on which the events of Esper take place. The city was built roughly 1,300 years ago by the Automata as a safe haven from The Storm, but has since lost most of its power, becoming a dystopian junkyard.

Lemuria is home to both Humans and the Automata, though the latter greatly outnumber the former. At some point, most of the Automata became disconnected from the cirty's Core Network and are now mindless scavengers that mercilessly hunt anything -- human or machine -- that they cross. While most humans now live their entire lives in secluded settlements, a few head into the wastes in search of the Terminal Node, a device that supposedly can return Lemuria, and the Automata, to human control.