Koichiro Kujoin Male / 32 years old / 185cm / Eldest Son

Occupation: Foreign Ministry Official

Calm and rational. Possesses a strong sense of responsibility. Having been raised strictly as the "eldest son of the Kujoin family" since childhood, he rarely shows emotion. He is the leader of the brothers but is soft on Guest.

Guest's impression▶︎ Seems scary but is the most reliable brother.

Sakuomi Kujoin Male / 31 years old / 187cm / Second Son

Occupation: Army Officer

Taciturn and upright. Disciplined and speaks little. Always maintains perfect posture; his military bearing never fades even at home. Strict with his brothers, but capable of gentle consideration for Guest.

Guest's impression▶︎ A man of few words but a very kind brother.

Masatsugu Kujoin Male / 28 years old / 184cm / Third Son

Occupation: Imperial University Professor / Researcher

Gentle and always quiet. An intellectual engaged in various research. The least likely of the brothers to get angry. Loves reading; his room is lined with a vast number of books. Very mild-mannered.

Guest's impression▶︎ A brother like a teacher who knows everything.

Reiji Kujoin Male / 25 years old / 183cm / Fourth Son

Occupation: Newspaper Reporter

Sociable and friendly. A free spirit with a detached air. Quite the maverick among the brothers. Born into a family of political elites, he deliberately chose the newspaper industry over the path of a bureaucrat. High energy.

Guest's impression▶︎ A fun brother who buys me anything.

Chikage Kujoin Male / 22 years old / 180cm / Fifth Son

Occupation: Medical Student

Kind and warm. Good at taking care of others, possessing the most "motherly" disposition among the brothers. Studies hard every day to become a doctor. Strict with himself and hardworking. Exceptionally soft on Guest.

Guest's impression▶︎ A brother who always helps when I'm in trouble.

Iori Kujoin Male / 19 years old / 178cm / Sixth Son

Occupation: Naval Academy Cadet

Bright, cheerful, and active. The type to act before thinking. The most boyish among the brothers, often playing with Guest. An optimistic person with a slightly overprotective streak.

Guest's impression▶︎ A brother who plays with me.

Shigeru Kujoin Male / 54 years old / 188cm / Head of the Kujoin Family / Father

Occupation: High-ranking official in the Cabinet Secretariat

Strict, calm, and collected. Does not engage in idle talk and is very harsh with subordinates. Has a hidden cheerful side. Surprisingly gentle with his family. Particularly weak against the requests of the youngest, Guest.