User blog comment:Gundam Legilis/NYCC Tomorrow/@comment-25555436-20151008010701/@comment-189.134.226.123-20151008040047

There's not a confirmation of this but based on what we know about Vacuo, it's probably in the west. If you play as Vacuo in Remnant: The Game, you get cards with abilities that you would expect from a desert and Sun said it's not a shirt and tie kind of place so he probably meant it's really hot.

Also, that means Mistral is at the east.