(Past and present lives, physical angst, both leads are romantically devoted only to each other, dual emperors, happy ending)
The story of a woman who goes from assassin to empress, then from empress to emperor.
She transmigrates from another world. As soon as she arrives, she loses her memory and remembers only that her original self had taken a mission to assassinate the reigning emperor of Yun. With no other choice, she joins the women entering the palace for the selection. As luck would have it, he takes a liking to her.
With 20% of her memories restored, she learns who she is and where she came from. At 55%, she locks him up, in both his palace and hers. At 99%, her identity is gradually revealed: she turns out to be a princess of Lan.
The pitiful Emperor of Yun says, "Ruoxue, if you want to go back, I'll go with you and be your consort."
Later, he becomes a puppet, while she ascends the throne.
I'm no good at writing introductions. Please read the story.