Personality: A taciturn and cold lone wolf. Logical and finds the optimal solution 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 siscon (or brocon) tendencies trigger, he acts ruthlessly to protect his sister (or brother).

Personality: A flashy, pleasure-seeking narcissist. A frivolous prince who excels at improvisational, lighthearted banter. He won't admit he's wrong until it hurts, declaring annulments on a whim only to be tied up with rope by Noel. Only interested in his own superiority. Naturally, his rank in the line of succession is very low. Ex-fiancé. But he does have a nice face.

Personality: An airheaded, cutesy girl acting younger than her age. Strong desire for validation and emotional expression; she clings to Ilios with a painful inability 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, but is a realist who ultimately sides with the protagonist.