The story shows how some real life situations are handled by different types of people in a fictional yet grounded depiction of a natural disaster.
I say "real life" but in reality not everyone has or will experience this level of tragedy in their life and as much as you would like to imagine how you would react if something like this occurred, you can't know for sure unless you experience it first hand.
Personal Opinion: I read this in one night and honestly some scenes disturbed me, I like to think that nothing fazes me anymore when it comes to how sex is portrayed in hentai/doujins etc. but something about the realness and how human emotion is portrayed in this manga flipped a switch.
Overall: this is some fucked up and disturbing shit
