A scheming prince who gives his wife a hard time for a moment, then chases her to the ends of the earth VS a peerlessly beautiful woman who was a naive sweetheart before being reborn, but plays dumb while plotting her moves afterward.
The serious blurb: In her previous life, she was the most cherished daughter of the General's Estate. She entered the palace at eight to study alongside the Crown Prince. A fortune-teller said she had the aspect of a phoenix, and her only brother called her "silly girl" and doted on her endlessly. But the winds of fortune shifted. The exiled Third Prince, Fang Qingjiu, returned and carefully laid his plans, using her to gather evidence and impeach the Crown Prince's faction. Everyone in the General's Estate was sent to the executioner's block in the coup. After witnessing the horror, she leaped from the city wall and was dashed to pieces.
Hua Qinglan: The Third Prince lied to me. If I could live again, I would kill him and stop all this.
Fang Qingjiu: A woman with the aspect of a phoenix? Of course I have to marry her. She doesn't want to? Then kill her too.
Only after she died did he realize that he couldn't bear to lose her.
When she awoke, she had been reborn at twelve, before any of it had happened.
She put the Third Prince on her list, avoided danger, turned his confidants against him, took his throne, and even stole away his little bride-to-be, making a fortune in the process.
Having lost both his power and his heart, the Third Prince only smiled. What else could he do? She was his wife, so he would spoil her!
Hua Qinglan: "Third Prince, still want to kill me? Look at you, you've lost everything. Doesn't that make you mad?"
Fang Qingjiu: "Why would I be mad? Silly girl, I did it all on purpose."
P.S. A naive sweetheart is reborn and uses her wits to spar with her scheming love interest in a story of love and rivalry, until she ascends to the throne as empress.