Her mission was only one - ' TRY TO FIND THE SNAKES IN THE PALACE WHO WOULD BITE TO DEATH, AND ELIMINATE THEM' Basically create a clear ground for Rachel to switch peacefully into a castle that she would nicely rule the kingdom with the king. It was Count D'Azure's plan after all.
Thus it was very obvious that her first step as Regina would be gaining the trust and the faith of her own husband, the king of the Kuravos Empire.
"So, since the circumstances are like this, I wish to hold a very..." Duncan continued his sentence. With a voice that anyone could mistake as an apology, but Regina interrupted him, "Yes, a very grand ball." She said as she sprung up from her seat and said in a cheerful happy way.
"Huh?" Duncan was caught off guard with Regina's this action.
"Eww, this is so cringe. I am getting goosebumps, but I have to do it." Regina thought to herself.