In my opinion, it's quite smooth and I can keep on reading because it gives me good vibes, not too stressed. Not only boys, but girls can also read this as well. The main story is about using the power of each card to fight each other. Moreover, aside from the battle, it also uses the brain a lot as well hahaha. That makes me root for them throughout the story, like, what will be going on next when they pick those cards? Anyhow, another thing I like is that the story is not looping, but progressing. Such a cool novel!
