Give her a handle

The emperor is seriously ill, the prince is young, the rebels are rebelling, and the army is approaching the city. Her country and family are about to be destroyed, so she writes to the King of Nanchuan and asks for help. As long as he can send troops to save her, she can agree to any request. He finally came and saved her and her husband and children. No matter how ruthless she was, he was still reluctant to part with her, but the price still had to be paid. What he wanted was never the throne in the world, but just one person.