Ok... so for a second I was trying to understand the mom. She was under a lot of pressure, snapped and hit her daughter. Tried to distance herself because she felt guilty. OK, that I would understand.
But only feeling guilty because it was "her sin"? Wishing her daughter had never been born so...
So, two things we've learned. Women apparently have no rights and can be traded to someone in a duel.
And two, despite death matches not being allowed, it's still not a crime to kill someone during a duel (though I assume Cait Sith would save them).
Dton't worry, with the MCs power to dominate people, I'm sure they'll add slaves to this before long so they can trivialize that, too. And the people will be happy being enslaved.