Infinity is split into two volumes: The first book contains all the fluff and backstory for the in-game universe and the second contains the rules.
The fluff has interesting concepts but is overall poorly written and poorly thought out. Also the preponderance of the art is "big titty waifu" which goes from funny to tired to deeply sad in about three images.
The rules are intricate and well thought out and the examples are clearly illustrated and thoroughly explained. If the fluff was better this could be a truly outstanding tabletop game system.