My Lord, Your Abandoned Concubine Doesn't Want You.

She was originally a nurse in the 21st century, but because she was killed in a deep mountain adventure, her soul traveled to an imaginary era and became someone else's abandoned concubine. She survived in adversity and took to water like a fish in water. The man who had deeply hurt her was willing to abandon all glory and wealth to wander around the world with him; the prince could give up the entire harem for her; the miracle doctor could give her one life in exchange for another; where would she go, and who was the man to whom she could give her life?