Outlaw Princess

Princess Cecilia is a prisoner of her sister, Queen Ella the third of Lane. While going heading back to her sister's castle, her party is attacked by a band of mysterious creatures. Cecilia makes it alive and saves a young knight, but is still brought back to her sister's castle. Instead of being imprisoned of her crime, her sister makes a deal with Cecilia. If she brings back the crystal of Ore, Cecilia would be forgiven of all her crimes. Cecilia knows that taking the dangerous journey may result in death, but she will for sure dead if she refuses.