Either this book is written slightly better than the last or I'm just getting used to the writing style. Still, the prose itself isn't that great, outside of the dialogue (which is just as confusing with the lack of dialogue tags).
Also, the shield upgrade text is needlessly split up. I started skipping the first half and just reading the second, since the second tells you more info. Really, the two should just be combined, with the abilities of the shield listed right after it being unlocked.
Before I get into the story itself, I wanted to go back to the slave controversy. It's no longer a spoiler at this point, seeing as it was brought up in the end of the first book, but... This is honestly the series' biggest mistake, from what I've seen/read of it. There is literally zero reason this has to happen, other than for some fetish thing. Like, it's not even used once in this volume. So, unless there ends up being an important twist with it later on, there is literally ZERO reason for Raphtalia to become a slave again. It's not like even Naofumi cares at this point--just Raphtalia.
Basically, in this volume, it's just a reason for Naofumi to visit the slave trader again.
As for the rest of the volume, there's much less tension in it than the first, as it's mostly just Naofumi and his party traveling around and helping people (even if Naofumi is just doing it for money). The waves are hardly mentioned, and even the party leveling up is secondary to just traveling around and unlocking new abilities/learning new skills.
It's still an enjoyable book, especially with the introduction of a new character that really helps create a fun group dynamic. In some ways, it doesn't feel like much happened, but there actually were quite a few adventures, and Naofumi and his party all grew some mentally and emotionally (and physically, for one of them in particular).
Overall, while some of my complaints about the first book still stand, and while this book has way less tension, I think I enjoyed this one a bit more. While Naofumi still comes across as pretty heartless, it's clear he's on a better path than before, and the new character helps add more to the group dynamic and is just a fun character all-around. Raphtalia is great, though she was relegated a bit to the side in this book, because of her motion sickness. Still, I think this book set things up well for the future, and I'm excited to read the next volume.