The main character is insufferable and I hate him from the very start. His obsessivness with this girl isn't realistic or charming its just annoying and down right infuriating at some points considering how he treats his friends.
Another edgy character in particular will literally attempt to murder people but no one cares or dislikes him because of it. It doesn't make sense and is just kinda dumb.
I'm only on chapter 7 but the "twist" for the zombies is really dumb and kinda removes a lot of the urgency from everything.
If I didn't have such a hardon for zombies I would rate this series even lower.
If you want a zombie manga you'd be better off reading high school of the dead or cradle of monsters.