The art isn't great, the story is unoriginal, and it drops you right in the middle of it.
However, I like the concept of the anime.
Yes, we've seen cellphone Isekai before. This one is a bit different since it centers around the military.
IF it had been executed in a different way I think I would have given this a lot more stars.
I'm going to go see if I can find a light novel or a manga