An Agent Transmigrates, and the Wicked Prince Won't Stop Pursuing His Wife

[Cathartic revenge, powerful male and female leads, devoted to each other] A modern-day special agent suffers the misfortune of transmigrating into the body of a specially trained assassin. Though poisoned with a deadly toxin, she refuses to be controlled. She turns the situation to her advantage and becomes the abstinent prince's destined partner. They strike a deal: she becomes his wife, and all she wants is money. It was only supposed to be a transaction, so why does this guy keep climbing into her bed and making heartfelt confessions? One day, "Become my wife. I am yours, my money is yours, and your money stays yours." "My lady, you can trust me with your back." But when schemes of all kinds come crashing down, how will they find their way through?