Responses
Hmm i think when yuriel ran away with ettsen, yeldyria was still soft to her, it's mentioned that ria empathize yuriel as fellow outsider and she thought yuriel was also forced to enter the game, so she let her stay, and she's also afraid to kill her because yuriel is the game's protagonist and she has no idea what happen if she killed yuriel
When yuriel tried to harm daisy, that time she's finally being serious to really kick yuriel out from the palace, but she can't because of the emperor, so punishing yuriel is the best she can do for now, since yuriel also gains the emperor's favor
I really don't understand why mc didn't throw Yuriel out of the palace or preferably out of the country. After all, then she would be safe and wouldn't have to handle this idiot. In addition she would have had more time to spend with cuttie Nadricka.(づ￣ ³￣)づ