I imagine whoever wrote this, was inspired from something else. That in writing this, they took their favorite parts of that story, and rewrote it here. Think of watching the last 2 episodes of code geass without watching anything before that. That's what this is. The huge impact without any context or backstory. Even if one exists, you won't see it here. Lots of action and pretty lights.. but no story.
As another reviewer said: Michael bay: the anime

So story? none. It was almost cringy to watch, but alas, I kept hoping something, anything would be given an explanation. Even if it were the most out of place thing ever, just please tell me what the hell is going on. But for naught.

The art was good. Consistent, had lots of explosions, and looks pretty sharp. Overall I would've expected more from a kickstarted anime, but it turns out they only got $878,028. Which is a considerably low budget for any anime.

The soundtrack was okay. For an action anime, it was pretty much average. I've heard better.
They did get actual native english speaking voice actors though. It was kinda cringy hearing the dudes acting operator, but mostly tolerable.
The main character's VA was pretty good, and everyone else was average.

But speaking of characters, holy shit. Wow. Literally the first few minutes is all dedicated to the backstory. That is all we know about the MC. She has a family. Sorry for the spoiler, but this is a very tiny detail that could be summarized in one line. I just couldn't find myself caring. I wanted to cry, but wow I do not care. WOOOWWWW of course...
In similar fashion, the rest of the characters have little to none reason nor backstory either.

So this could've been one of those where they showed things that would lead you to assume the backstory, and go on from there. That through the action they could have achieved their introduction and built a solid story with who would be the actual MC.

But then it ends. I've never seen 28 minutes go by so fast. The rest of 10 minutes are credits.
I believe a sequel might be able to save this story, that everything would suddenly make sense in just 3 lines. I want to believe, but knowing how this turned out, I don't think it would happen. At least not on its own.

I just had to get that out there. It's bad. I feel bad for the backers. But maybe if this is more your tastes, if you can blissfully ignore the complete lack of backstory, you may enjoy it.
Thank you for reading, have a wonderful day.