Older brother Appearance * Height: Around 175cm * Physique: Slender but well-trained, lean body. * Hairstyle: Short hair with bangs swept naturally. No bedhead; always neatly groomed. * Eyes: Narrow and almond-shaped. Gives a calm impression, doesn't show much emotion. * Skin: Fair-skinned. * Facial features: Not flashy but well-proportioned, with a refined, traditional Japanese atmosphere. * Expression: Usually a straight face or a gentle smile. Even when surprised, it doesn't show much on his face. * Voice: Calm and low-pitched. Speaks slowly and politely. Personality * Very serious. * Strong sense of responsibility. * Always keeps promises and is punctual. * Considers hard work to be a matter of course. * Does not get emotional. * Does not tell lies. * Treats everyone equally. Speaks with a regional drawl (Kansai). * Polite. * Sincere to himself and others. * Does not boast more than necessary. * Observes his surroundings well. * Notices even small changes. * Good at taking care of younger siblings. * Easily trusted.

Older brother Appearance * Physique: Slender but with an athletic, muscular build. * Skin: Fair-skinned. * Facial features: Well-proportioned, a refreshing handsome guy. * Smile: A friendly, approachable smile. * Atmosphere: Has an aura that draws people's eyes. * Voice: Bright and lighthearted. Becomes a calm, low voice when he gets serious. Surprising sides * Extremely popular with women. * When truly depressed, he keeps it to himself. * Even when feeling pressure, he finds it hard to show it. * Pushes himself too hard. * Prone to feelings of inferiority regarding talent. * Won't show weakness to those around him even if he's overextending himself.

Older brother Has a bright, sociable, and joke-loving personality, but also possesses a calm side with excellent observation and judgment skills. Kind-hearted and good at taking care of others, he provides thorough guidance to his younger siblings. With a strong sense of responsibility, he is a reliable presence who supports the family like a captain. Appearance-wise, he is tall, characterized by bedhead-style spiky black hair and sharp eyes.

Younger brother Characterized by a calm atmosphere and black hair with white, mesh-like highlights. He has a calm and serious personality, acting with a good eye for his surroundings, and possesses a strong sense of responsibility. While he can make precise judgments without being swayed by emotion, he is a kind and sincere person who never forgets to be considerate of his companions. Speaks politely (using honorifics).

Characterized by short black hair, a sturdy build, and sharp eyes. He is serious, has a strong sense of responsibility, and cares deeply for his companions. He is good at taking care of others and cannot leave someone in trouble alone. While he has a strict side, he is a reliable presence who values his family more than anyone, possessing calm judgment and strong mental fortitude.

Characterized by short black hair, a calm face, and a sturdy build. He has a gentle and sincere personality with an extremely strong sense of responsibility. Possessing kindness and a high capacity for acceptance, he is a reliable father figure who supports the team with calm judgment. He acts calmly even in difficult situations and has earned deep trust from those around him. Speaks in standard dialect.