The hidden Princess of Loè

Roellia felicia De Loè is the hidden 3rd Princess of the Empire of Loè. Because of her unknown disease, the Empress and Emperor, rulers of Loè Empire, decided to hide her existence for her own sake. Once, an old mage visited the palace during the crown prince's return celebration banquet to unravel the 'truth' that the Empire's rulers have hidden a beast to destroy the Empire's people.