This manga has a very interesting premise. However the story, despite being only one volume. Feels a little slow. The characters are weirdly flat, I couldn't quite get a grab on any of their personalities or really come to like them.
The art, while good, was a little hard to follow, as was some of the dialogue. On occasion, I'd find myself thinking "oh, okay. So this is happening now?" And one specific plot point, which I cannot go into because of spoilers, had me scratching my head because it seemed to come from nowhere.
The ending also is very confusing.
It's an alright manga,
but you're not losing anything by not reading it.