Did the guy glue the dagger to his shoe or something? Seems to be an odd way to stab the other guy's hand. Seems like the author was trying to make it seem cooler, but missed something in how they portrayed it.
I hate thieves. To make it worse she claims she should be treated as an adult while having her actions overlooked as if she was a child. Throw her in jail. Don't enslave her though, then we will never be rid of her from the story.
It's likely the brother is playing the bad guy to roundup all traitors in the country and double cross them after they follow the plan. In these cases usually something goes wrong or is overlooked with the plan and the MC fills in the holes of the plan without knowing it.
Reason being is the...
Seems like the school is using this school and dungeon to purge the god power from the students. Likely using the whole sex thing to keep them distracted from the true goal.
Well their leader did go missing or had a psychotic break. The MC will be kind and bring them into the fold. The poor guys and girls will be so sad for the loss of their leader, but I'm sure they will find a way to move on.
The mother said, "Fighting is a man's job - if you had magic then, it could be possible...but a girl, fighting..." All that tells us is that with magic the mother thinks that a woman at least wouldn't get steamrolled by most men. Since most men likely don't use magic that isn't saying much...