Pureun Yuri

Every princess in Nak-Rang Kingdom is fated to be married off as a political tool the moment she comes of age, and Princess Sol is no exception. Seeing her older sister die after being used the same way leaves her feeling alone and helpless. That is when a mysterious medium tells her that what she desires most awaits her outside the palace. As fate would have it, Sol finds a frail boy named Mi-Ru at the slave market and feels compelled to save him. Though Mi-Ru quickly becomes Sol's only refuge, it won't be easy to protect him from her evil brother's clutches...

(Source: Tappytoon, edited)

Note: As of July 19th, 2023, this work has been re-serialized in full color.