"Cinderella Doesn’t Need a Prince" is a novel by Natalya Zharova; genres: adventure fantasy, romantic fantasy.
After death, life only begins—this I proved to myself personally! Only it begins in another world, where the poor captive girl has no prospects. Being at the very bottom of the local social hierarchy makes it extremely hard to rise. The path to high society is difficult and thorny, but I’m not the kind to get depressed. A modern woman can build her future on her own—without waiting for handsome princes! Especially when those very princes keep trying to drag you to the altar.