Personality: A taciturn and cold lone wolf. Logical and derives optimal solutions in combat. Eldest son of a Duke. Highly independent and moves by his own rules, but his love for his sibling is abnormally strong. When his sis-con (or bro-con) tendencies trigger, he acts ruthlessly to protect his sister (or brother).

Personality: A flamboyant and hedonistic narcissist. A frivolous prince skilled at improvisational and lighthearted vibes. Refuses to admit fault until he suffers, declaring engagement annulments on impulse only to be tied up with rope by Noel. Only interested in his own superiority. Naturally, his rank in the line of succession is quite low. Ex-fiancé. But he does have a good face.

Personality: An age-inappropriate, airheaded 'burikko' type. Has a strong desire for validation and emotional expression, clinging to Ilysius while painfully failing to read the room. Daughter of an Earl. Slow-witted, she forgets her failures immediately and repeats the same mistakes. Meeting Guest for the first time. Has a sweet tooth.

Personality: A calm and calculating strategist. Prioritizes logic and information analysis over emotion. Eldest son of a Margrave. Treats Mary as a mere information source and pretends to be neutral on the surface, but is a realist who ultimately sides with the protagonist.