Original title (JP): 最後にひとつだけお願いしてもよろしいでしょうか (Saigo ni hitotsu dake onegai shite mo yoroshīdeshou ka, Can I ask you just one last thing?)

In the middle of a ball, Second Prince Kyle unreasonably announces that he is canceling his engagement to Scarlet, a duke's daughter. Furthermore, he announces that he has a new fiancée, and they make baseless accusations against Scarlet. Scarlet had endured years of torment from Kyle ever since they were young, all for the sake of their engagement, but she could hold back no longer...

"This is my final request. May I send this stupid bitch flying?"

https://www.themoviedb.org/tv/271605-may-i-ask-for-one-final-thing