I've really enjoyed this manga so far. It was confusing at first, but since things have developed enough, I've been able to piece things together. It's still not the easiest story to follow, but many things have been explained, and the revelations are pretty amazing to me. I really just like the overall tone of the series too. With it's mixture of light humor amidst the seriousness of this fucked up, post apocalyptic world, it's a fun, immersive experience. The back and forth between the past and present, while confusing, is still enjoyable. The mystery of it all keeps you reading as well. The art,while not amazing, I really enjoy. I like the style, it fits the world very well, as it balances out the bleakness of it with a sort light touch. I don't think there's a ton of tone used, and the line work is clean. Overall I'd say it has a sort of spaced out, open vibe to it, with plenty of small details as well.