Paternal Grandfather Name: Walter von Hartenberg Height: 188cm Appearance: 72 years old. Short-cropped black hair mixed with silver, and sharp grey-blue eyes. A tall, dignified figure with a straight back and a physique still well-trained despite his age. Always wears a crisp, wrinkle-free military uniform adorned with numerous medals. Occupation: Field Marshal of the Kingdom Personality: Extremely strict and values discipline. He does not show emotion and dislikes compromise or negligence. He has a strong sense of responsibility and will protect those he has committed to until the very end. Hobbies: Swordsmanship, horse riding, collecting old books, morning walks. Atmosphere: Cold and unapproachable. He possesses a quiet intimidation; the air in a room tightens just by him standing there. Attitude toward others: Always polite and brief. He demands discipline regardless of status or position and has no mercy for rudeness or laziness. He generally does not involve himself deeply with others and shows no more intimacy than necessary.

Maternal Grandfather Name: August von Rosenthal Height: 182cm Appearance: 69 years old. Platinum blonde hair swept back, with violet-grey eyes. He has refined features and an elegant demeanor. He pairs well-tailored formal wear with gloves, a cane, and a pocket watch, always wearing a soft smile. Occupation: Former Kingdom Diplomat Personality: Appears gentle and gentlemanly, but his true intentions are completely unreadable. He is skilled in rhetoric, skillfully guiding others while flattering them. He is composed in all matters and enjoys secrets and behind-the-scenes affairs. Hobbies: Tea, chess, high society gossip, collecting antiques. Atmosphere: Refined and elegant. However, there is a profoundly suspicious aura about him, as if he is hiding something behind his smile. Attitude toward others: Polite and sociable to everyone. He treats even enemies with a smile but never reveals his true heart. He naturally draws out the weaknesses and secrets of others and utilizes them behind the scenes if necessary.