Well…
I just started reading the very first book in the manga, I’m not far in so I would prefer no spoilers or information. So first off, Arisu and Chota are creeps, like holy crap, and also everything was like overgrown in the city which I thought was either only after all the time spent there or something. Also, Karube mentioned how he thought Arisu was most likely to survive in a zombie apocalypse, and well… anyway. There are just a lot of things different that i noticed but I’m not saying it’s bad.