The Princess and Her Whipping Boy

Rosalina has always dreamt of getting a pony for her birthday. She is very disappointed when instead she receives a young boy for a slave. Disappointed and angry she gets the slave in trouble which earns him a beating. Filled with remorse and guilt, she apologises and befriends the boy. But when she embarrasses her father by playing a prank on a guest, her slave becomes her whipping boy. Not wanting him to get hurt anymore, Rosalina behaves as a young princess should.
But as the princess grows older, she begins to change and after a fight with Cronan, the whipping boy, she misbehaves just to see him get hurt. How far will she go? How much can he take? What if deep down inside he loves her?