Oh man, it's pretty awesome to see multiple releases of this and I definitely want more.
I know the comment section was complaining about Air being far too naive and forgiving regarding obviously terrible people but he's still really fascinating.
I do wonder when he'll actually start treating Karen as a party member. I mean, he took Rhea with him. Karaboshi just left her while being totally clueless about how she might feel about this as usual. XD
To be fair, Rhea is a tamed monster so you could say that she's part of him as an adventurer and while it wasn't mentioned this time, it's probably better for Karen to stay behind to keep watch over the dungeon. Let's hope she doesn't do anything reckless by herself in an attempt to become stronger. Of course, the invitation was also only directed at him, but the issue is that he's not indicating at all that he works with Karen. There's no mention of her in his blog for instance. She's on one hand young, and on the other she wields magic which is really rare so mentioning her participation might be problematic. Still, it wouldn't be surprising if he continues ignoring her that she ends up with another party who values her properly. Then again, Karaboshi is a trustworthy person and she's been burned before by other adventurers so she should want to stay with him even if he has a tendency to overlook her. Well, we'll see.