I'll express interest. Are things like androids things that exist in the setting? (Downloading one's brain into a robot seems like a decent avenue for immortality, really.)
Yes, automotons, living armors, and yes... even possessed demonic swords do exist in the MGE and would be acceptable.
-Some of them may take greater mental gymnastics, similar to explaining the eccentric habit of a certain garlic-loving nom-happy demi-vampire.
Just going to point out that robots
do tend to break down, and hard to repair.
Especially the ones with human levels of intelligence.
Plus not everyone copes with realizing they woke up a robot quite so well as others, especially if there's a considerable amount of time between the upload to a file, and download into a working robotic hull.
There actually was a game that covered this problem.So you're going up against Necromorphs...
These guys: 
As anime style (I'm assuming) monster girls in mechs?
Alllriiight...
Yes. If you've seen everyday life with a monster girl, or interview with a monster girl, you've got just about the right idea.
Except they're attending an academy to pilot mechs... similar to infinite stratos (I guess).