Reborn as the Regent Prince's Bride: My Family Kneels and Begs for Forgiveness

[Marriage Swap] [Reborn] [Mutual Redemption] [Both Leads Are Chaste] [Clear-Headed Heroine]

In my previous life, my parents sent me into the palace to take the calamity meant for my elder sister. I worked my way into the emperor's favor and took the throne as empress.

But the emperor killed me with his own hands, smiling with tender warmth. "Yaoyao, only the dead will never betray me."

Only then did I realize that the emperor was a complete psychopath.

Meanwhile, my elder sister was betrothed to Prince Duan. But when he died young, she was forced to live as a widow while her husband was still alive.

In the end, she was caught having an affair and hanged herself.

My elder sister and I were both reborn, and she actually took the initiative to suggest swapping marriages?

I smiled and readily agreed.

Marry Prince Duan, become a widow, and enjoy a life of wealth and privilege.

I'm the first person in the capital to lie flat!

But can someone tell me, why isn't Prince Duan dead?

And later, the emperor regained his memories too. Is he going to steal his subject's wife?