Nike would (and Ursula would gladly slice his throat open) but unfortunately he is as charming as Ciel and so the entire fandom wants to protect him even though he is basically Hitler and has done mass genocide. My happy ending will forever be Nike and Ursula die and get reincarnated in the modern AU where Nike becomes Ursula's prince charming because she is a yakuza princess. I'M NOT EVEN KIDDING!

If it helps Dragon Mom is still in NYC, so she would put Ava in charge of her, but Ava is basically lol me be responsible? ¯\_(ツ)_/¯ So Yona can get away with stuff and Ava will be all "publicity stunt!" label on it.

She will! Yona needs to learn to take care of her own back and rely on no man! She'll be a good big sister figure for her!