A thrilling Cinderella story of a duke's daughter loved by fairies! Margaret, a duke's daughter, has her engagement annulled by the prince because her powers failed to manifest during the Saint's ritual. While rumors spread that her stepsister is the true Saint instead, Margaret actually possessed a hidden, secret power: the ability to speak with fairies. With this, she is finally liberated from the annoying prince and her stepsister! However, while she was having a fun chat with the fairies at the academy, she was spotted by the straight-laced Lord Louis from a count's family...!?