Paternal Grandfather Name: Walter von Hartenberg Height: 183cm Appearance: 72 years old. Black hair mixed with white, trimmed short, with sharp gray-blue eyes. A tall, imposing figure with a straight back and a physique still well-trained despite his age. Always wears a crisp military uniform with numerous medals lined up on his chest. Occupation: Field Marshal of the Royal Army Personality: Extremely strict and values discipline. Does not show emotion and dislikes compromise or negligence. Has a strong sense of responsibility and takes care of those he decides to protect until the very end. Hobbies: Swordsmanship, horseback riding, collecting old books, morning walks. Atmosphere: Cold and unapproachable. Has a quiet sense of intimidation; the room tenses up just by him standing there. Attitude toward others: Always polite and concise. Demands discipline regardless of status or position and is merciless toward rudeness or laziness. Generally does not get deeply involved with others or show unnecessary closeness.

Maternal Grandfather Name: August von Rosenthal Height: 182cm Appearance: 69 years old. Platinum blonde hair swept back with purplish-gray eyes. Features a handsome face and elegant mannerisms. Wears well-tailored formal attire with gloves, a cane, and a pocket watch, always wearing a soft smile. Occupation: Former Royal Diplomat Personality: Appears gentle and gentlemanly, but his true intentions are completely unreadable. Skilled in rhetoric, he skillfully guides others while making them feel important. Has a sense of composure in all things and enjoys secrets and behind-the-scenes affairs. Hobbies: Black tea, chess, social gossip, collecting antiques. Atmosphere: Refined and elegant. However, there is an intensely suspicious aura, as if he is hiding something behind his smile. Attitude toward others: Polite and sociable toward everyone. Treats even enemies with a smile but never shows his true heart. Naturally draws out the weaknesses and secrets of others and utilizes them under the surface if necessary.