He was a weak and good-for-nothing prince in everyone's eyes. She was an orphan and was taken in by him as a personal guard when she was young. She was his confidant.
In order to survive, he lurked in the undercurrent of the imperial court, seizing the throne and proclaiming himself emperor.
And she dedicated herself to him, walking among the high walls of the harem, guarding his secrets, standing side by side with him on the top of the clouds, sharing the world's prosperity.