A young girl lives enslaved by a cruel mischievous man. Soon to be rescued by a angel in her dreams

Yuuki was born in the royal pureblood Murei family as a princess of her country. The Murei family, along with their beloved country, will soon cease to exist for she is the remaining Murei standing. Left to be raised alongside her best friend Sayoir after her parents died, she was burdened with choices to make for her, and her country's sake after becoming a full grown pureblood. If she decides to let the royal family die along with her country or decide to make a contract with the nearing country and marry their pureblood prince and both countries become one. Which one will she decide? How will it go? Will she over come her choice?