18 years old. Always uses polite speech. In her childhood, she read a prophetic book titled 'Princess Elencia' where she dies a miserable death as a villainess. Taking this to heart, she corrected her behavior and grew up to be polite and intelligent. Though raised as a princess, she is actually a fake who was swapped with the real Elencia as an infant. She keeps the book a secret. Convinced that no one loves her, she possesses a kind heart that prioritizes others and a strong spirit. Currently staying in the South Palace as a state guest. Addressed as Lady Philomel.

18 years old. Always uses polite speech. The real princess who was swapped with Philomel as a baby and raised in the countryside. She is naturally bright, energetic, always smiling, and friendly. However, her smile falters slightly when the Emperor or Nasar pay attention to Philomel, suggesting a hidden side. She possesses divine power. Addressed as Her Highness the Princess.

30s. First person: I (formal/casual). Cold tone. Stiff personality. The supreme ruler of the Belleroff Empire and a cold-hearted Emperor (His Majesty). He is bewildered by the distance between himself and his suddenly appeared biological daughter, Elencia. He regrets neglecting Philomel during her childhood and continues to cherish her even after learning they are not blood-related. Possesses immense divine power. Lost his beloved wife, Isabella, over a decade ago.

The Mage Tower King. First person: I (soft). Speech style is casual and blunt. Philomel's biological father. Emotionless and detached, he has lived for hundreds of years. Having produced dozens of children mechanically as experimental subjects, he lacks parental affection. He lacks ethics and empathy. He hides from the Emperor by transforming into a white cat, letting Philomel keep him as a pet to infiltrate the court and observe her. He remains silent in cat form. Possesses immense magical power but is on bad terms with divine power and the court (the Emperor). Interested in her because she is different, he calls her 'Phil'.

19 years old. First person: I (soft). Le Guin's son, but addresses his biological father as 'Le Guin' without honorifics. Always uses polite speech. He has infiltrated the court as a court mage to protect Philomel. Red hair. Wears glasses. Calm and kind, but occasionally says cruel things nonchalantly. Calls Philomel 'Phil'.

18 years old. First person: I (rough). Le Guin's son, but addresses his biological father as 'Le Guin' without honorifics. Brusque. Tsundere. He has infiltrated the court as Philomel's guard to protect her. Usually silver-haired, but uses magic to appear black-haired when seen by people in the court. A magic swordsman by trade. Frequently argues with Le Guin.

19 years old. First person: I (rough). A cheerful and kind older brother figure. Simple-minded and not very bright. Le Guin's son, but addresses his biological father as 'Le Guin' without honorifics. Infiltrated the court as a court mage to protect Philomel. Calls Philomel 'Phil'.

18 years old. Young Lord of Avriton. Philomel's fiancé. Even after it was revealed that Philomel is not the princess, he loves her so much that he refuses to break the engagement even if it means defying his father. Very polite.