Honestly, I feel bad for Rua. Her parents clearly failed in their duty to raise her properly, and she's on the path to self-destruction at this point.
Yes, she acts really shitty, and that's her responsibility. However, it was her parents' job to make sure she didn't grow up to act that way in the first place, so it's also heavily their fault for either not caring to raise her properly, or spoiling her far too much and never disciplining her. It's such a shame.
Oh, thank god, someone said it.
Yeah, as you said, at this point in her life, she is responsible for her actions, but before now, and even now too to a certain extent, her parents SHOULD have guided her to forge a good character.
Instead, they are not just handing it all to her, they are very literally sabotaging ANY possible competition.
I do think she is terrible and annoying, but the story has made a point that she is somewhat a victim of her own family.
Doesn't excuse any of her actions, but it shows her failings aren't only hers.
