Somehow, this feels a lot like Ladies vs Butlers, with the ecchi part tuned down.
Regarding the first scene, I see it more like a training battle where cadets are all against a hell of an instructor, being non other than Ichika's sister.
Also, who in their right mind would believe you develop IS exoskeleton on a massive scale for entertainment purposes when you only factor the costs?
Another point of utter crap is the technological jump from today's cosmonaut suit, to a high speed, high manouevrability, highly weaponed, flying exoskeleton suit... in only ten years.
We're not talking computers here, that can rely on electronics to gain orders of magnitude every 4 to 5 years.
We're talking aeronautics, mechanics, material resistance, weight gains, size gains, power density gains, ergonomics gains, acceleration dampeners and so on... so many technologies that need many oders of magnitude of progress all at the same time, all of that with coherent integration and in a mere 10 years.
Oh yeah, I did it again, trying to be serious on such an anime![]()