Just a reminder: Luna took out a loan from the Black Market to buy those two fighters and she has no chance of paying it back now. I suppose her parents could bail her out but with the way the story is going it wouldn't be strange if they couldn't or didn't.
This doesn't seem awful but I definitely would have liked it if he used his evasion skill to beat things he shouldn't be able to if he were a regular adventurer, it would have felt more like working for his success rather than getting lucky. He also looks very young so it'd make sense for his...
This might be hard to grasp but returning there at all was the stupid part. Anyone with some sense would have been able to see that and anything that happened after was just idiot seasoning.
If you look at the comments for chapter 11 you can see that a member of their group already told them this last month. They still haven't fixed it and I suspect they aren't going to at this rate. I'd accuse them of being bots, but I don't think even a bot would make this mistake repeatedly.