Young and naive Crown Princess Aurora seeks forbidden knowledge: The Art of Riding, which has been outlawed by the Unicorns for centuries because carrying men would degrade them to mere beasts of burden and put them on the same level as normal horses.
Draconic Kobold Slave Xemreis offers to teach her about the forbidden knowledge in secret, if she accepts him as her Master. Over the following weeks, he gradually teaches the Unicorn and secretly shapes her to his will. Slowly he transforms her from an innocent Unicorn princess to his lowly mount and plaything and even tries to trick her into being bred by a lowly horse stallion.
Gradually she accepts him as her Master, even her Owner and learns to love her new place in the world.