Ilet and her shadow are one, they always want to hunt. But because of her mentor's control, she fears that her memories have been stolen. Now nineteen, she has studied for a long time in the mysterious Holy Order, and she wants to be promoted, drive away the spirits in the name of the Golden Prince from the prophecy. When a threat looms over the crown, Aylet takes the chance to prove her worth. Wanting to win the prince's trust and escape from her cunning mentor, she decides to enter into a competition with Terrin, a handsome and arrogant opponent who is not inferior to her in strength and can take the place she wants. They arrive at the Great Barrier along the way, encountering a legendary evil , and the secrets of Aylet’s past may come to light...Will Aylet survive? Will he be able to find himself? Can he survive at least a day without his mentor?