The Cold King's Peerless Physician Consort

A top secret agent and queen of her field transmigrates into an alternate era. Ugly? Useless? No connections or status? Sorry, but I'm the granddaughter of the Duke of State, the Crown Prince's fiancée, and the future Crown Princess. Ancient divine beasts are my pets, top-grade pills are my candy, and I'm a beast tamer the likes of which hasn't been seen in ten thousand years. Cooking, martial arts, medicine: there's nothing I can't do. You say I'm ugly? I'll take off my mask and knock you dead with my beauty. As for the man who keeps following me, I can't beat him or out-argue him, so I'll just have to put up with him.

Him: “Little one, you stole my heart. Don't think you can get away without paying for it.”

Her: “Hey, that's going too far. I'm innocent!”

Him: “I can make sure you aren't innocent anymore.”

Her: “...”