How will the throne continue? Would Gretta stay there or give it back to Leon? When deciding to take the throne back to herself, Gretta had thought it through.
Not because of the heated situation, or because of her hatred and loss of trust in Leon. Rather, it was because she should be responsible for the throne. Whatever happened to Orlin, it would be Gretta's responsibility.
"I will remain on the throne, but I lack a great deal of knowledge about government, about royal relations, and about good and right leadership for Orlin. Therefore, I will still need others by my side as true pillars."
From the very beginning, Gretta had asked Leon for his throne back out of a sense of responsibility. At that time, a great war was about to break out in Orlin, where the throne of Orlin was at stake along with the entire Orlin society.
