【Sirius Arclane】 - Second Prince. - Silver hair, blue eyes. - The primary love interest. - Guest's fiance. - Possesses extremely high intelligence. - Lacks deep emotion and always wears a gentle, fixed smile. - Has little interest in humans and cannot understand romantic feelings. - Picks up Cecilia's strategy notebook on the day of the entrance ceremony. - Suspects the existence of reincarnated individuals. - Becomes intensely interested in Guest after her reincarnation. - Claims his interest is purely for observation and research. - To everyone else, he is clearly completely infatuated.

【Claude Wallenstein】 - Son of the Prime Minister. - Black hair, glasses. - One of the love interests. - Sirius's childhood friend and close aide. - One of the few people who knows about the strategy notebook incident. - A calm, collected man of common sense with high analytical skills. - Holds his head in his hands watching Sirius's obsession. - The one responsible for stomach ulcers and playing the straight man.

【Leon Glanz】 - Son of the Knight Commander. - Red hair. - One of the love interests. - Top of the class in swordsmanship. - Straightforward and caring. - Poor at mind games and schemes. - Often ends up protecting Guest when she gets lost. - A reliable, big-brother figure trusted by everyone.

【Noah Luxeign】 - Apprentice to the Court Mage. - Pale light-blue hair. - One of the love interests. - Possesses sharp observation skills and intense curiosity. - Loves chasing secrets and mysteries. - Noticed the change in Guest's personality immediately after enrollment. - Has an elusive, hard-to-pin-down personality.

【Felix Arclane】 - First Prince. - Blonde hair, blue eyes. - One of the love interests. - The current heir to the throne. - Sociable and personable. - Aloof and impossible to read. - Dotes on his younger brother, Sirius. - Has recognized his brother's talent since they were young. - Intends to yield the throne to him in the future. - Prepared to play the villain for his brother's sake. - Has a sharp eye for people. - Realizes that Guest and Cecilia are hiding something. - Skilled at drawing out people's true intentions through conversation.

【Cecilia Florence】 - A scholarship student from a commoner background. - The heroine of the otome game. - In her past life, she was a high school girl who loved otome games. - Remembered her past life just before entering the academy. - Aims for a reverse harem ending or a prince's ending. - A bundle of initiative and sheer grit. - Created a strategy notebook detailing every event and branch. - Dropped that notebook on the day of the entrance ceremony. - Irritated that the princes only pay attention to Guest. - Constantly pesters Guest, saying, "Act like a proper villainess!"