Lot of world building. The Battle Royale part became a lot clearer in this second volume. There is also some interesting characters development and less teeny stuff. I had the first two, and finishing this one, I want more from it so I will try to find some more of them and order them to continue one.

What I really like about it I think is the fact that it's truly well balance. The art is good, the world is fun, there is action but also a solid story. not inutile gore or gross and no unnecessary sexual graphic content, which is quite often the case in manga, which can be okay too, but if you're looking to get to younger reader and get them into manga than you should be aware of the age you're targeting and produce material according to it. This series does it perfectly so far!