Tokyo Tama city
Tama City, Tokyo, is a residential area, and actually became the first battlefield for Kurono and Kato.
The sound of an explosion resounded through the quiet town at night.
The town also seems to be located on a hill, as there are many slopes and staircases depicted within the story.
A beautiful view at night.
While we do seems one luxurious looking houses in the town, the house where the Onion Aliens live is actually an older flat.
You can see “Negi” (Onion) on the doorplate.
Was there some over-reigning technology that allowed them to live harmoniously amongst the humans? Perhaps.