Full disclaimer, I did not like reading this in any serious way, My personal review score for it seriously is 4. it drags, our main character goes missing for half the manga, and there is way too many characters that don't really get explored well - because by the time we meet them, it's 40 chapters in and all we want to see is our main character, not these random side characters we've never met before. If you are going to read this, go into it thinking it is satire. read it as if you were going to make fun of it. trust me it'llbe SIGNIFICANTLY more fun. I still think about this manga because of how absurd it can be, because it has pretty much every shounen sin in existence eg) an OP main character who wants to kill the main enemy desperately, who was a loser before this apocolypse, and suddenly he's the leader of this group - and just wants to find his love interest because he loves her so much, even though he doesn't describe one thing he likes about her. OH! and there's a giant fucking baby monster. I don't know what it is with horror and giant baby creatures, but i keep seeing it. It's so funny to read when you're making fun of it - because your perspective totally shifts - though it still gets really boring when the perspective changes.

Take my advice, Don't read it seriously. it's not good. read it as if it's satire or you're trying to take it apart, it becomes really funny that way. (an it's so bad it's good kind of read if you're in the right mindset).