Hiina, who became a royal palace magician to fulfill a promise made to her childhood friend Evan 10 years ago, is exiled from the royal palace by the aristocrats for being a commoner. However, she is reunited with Evan, who is actually the prince of her neighboring country, and decides to serve him. In front of such Hiina and Evan, there is another wall of "status". In order to overcome the obstacles, the two face the "trial", but...