Sophia (voiced by Diana Kaarina) is a princess of noble birth. Unfortunately, when she was very young, her mother was framed by the evil Lady Devin and died, and Sophia's whereabouts are unknown. In order to support her daughter, Princess De Lancy, to ascend the throne, Lady Devin did not hesitate to lie to the world that Sophia was dead in order to fulfill her ambition. Sophia, who was living among the people, was very lucky to be cared for and raised by a kind mother. When she grew up, she became a waitress in a hotel. She knew nothing about her life experience. By chance, Sophia came to the Princess Academy to study. In the academy, her mother's portrait revealed Sophia's true identity. With the help of the kind Princess De Lancy, can Sophia defeat Lady Devin and take back what should belong to her?