Dragon Rider

Dragon Rider is a two-episode hentai anime OVA series. It starts the Dragon Rider-in-training, Rike, so he can become a hero to impress his father and princess fiancee. His dragon turns out to be a very beautiful girl, Karisu, who can transform into a fierce dragon, or a pretty blonde girl. Rike must master the art of battle with his partner, as they battle the demons attempting to conquer the world. But when Karisu and Rike start to fall in love, things take a turn for the worse.