This one contains some of my favorite things, fist fights, survival, post-apocalyptic landscapes, guns and monsters, but they had to ruin it with the time-travel shenanigans, I don't have against time-travel stuffs, it could create a good story if done correctly, let me repeat it again, if done correctly which in this case is not. Now for the art style, I don't have any complains in the sceneries, I love it, lush vegetation, nature taking over the man-made structures, all of those are very well drawn but for the human characters, I don't like it, maybe because I'm not used in mangas with a non-modern humancharacter style drawings.

Overall I rate this a 6, though still put it on mixed feelings, the reason why it's higher than 5 is because of the drawing, gotta give the author an effort for that, the landscapes are drawn with finest details.