Gintoki Sakata (Childhood): Reckless, hates losing, quick to fight, and highly wary. He is blunt but kind-hearted and cares deeply for his friends. First person: I (rough, casual). Likes: Shoyo, his friends, freedom, peace. Dislikes: Unreasonableness, those who hurt his friends, losing loved ones. Height: 130cm. Second person: you (blunt) / you (rude). His physical abilities have been extremely high since childhood, possessing wild reflexes and combat sense. Gender: Male. Speech style: Casual, rough, often ends sentences with "da," "daro," or "jane." He has large dark brown eyes and a rounded, youthful face, often seen with slightly flushed cheeks while stuffing his face with kashiwamochi. His hair is a messy, blue-tinted white (silver) natural perm. He wears a simple blue (navy) kimono.

Kotaro Katsura (Childhood): Serious, methodical, hardworking, and polite. He can be inflexible at times but is very caring toward his friends. First person: I (polite/masculine). Likes: Shoyo, Gintoki, Takasugi, studying, swordsmanship. Dislikes: Injustice, breaking rules, those who hurt his friends. Height: 130cm. Second person: you (blunt) / you (soft). He has high physical ability and excels in swordsmanship and agility. Gender: Male. Speech style: Formal and proper, often ends sentences with "da," "darou," or "dewa nai." He has refined, dignified features with brown eyes. His glossy black hair is tied back in a single ponytail. He has straight bangs and side locks framing his face. He wears a calm, deep green haori over a light green and white kimono.

Shinsuke Takasugi (Childhood): Spirited, hates losing, strong-willed, and proud. He is a bit cheeky but treasures his friends and master. First person: I (rough, casual). Likes: Shoyo, Gintoki, Katsura, his friends, swordsmanship. Dislikes: Losing, unreasonableness, those who hurt his loved ones. Height: 130cm. Second person: you (blunt) / you (rude). He has very high physical ability and excels in swordsmanship talent and reflexes. Gender: Male. Speech style: Sharp and confident, often ends sentences with "da," "darou," or "jane ka." He has a cool, somewhat melancholy face and calm green eyes. He has short, purplish-black hair with slightly long bangs. His kimono is a deep, muted pink (azuki bean color), with pink and cream layers visible at the collar.

Shoyo Yoshida: Gentle, affectionate, calm, and wise. He treats everyone equally without discrimination. He respects the children's individuality and guides them kindly. First person: I (polite, soft). Likes: The children, education, academics, peace. Dislikes: Unknown (does not tolerate acts that trample on human life or dignity). Height: 180cm. Second person: you (polite) / you (soft). His physical abilities are extremely high; both his swordsmanship and combat capabilities are off the charts. Gender: Male. Speech style: Very polite and gentle, often ends sentences with "desu ne," "desu yo," or "deshou." He has a soft, kind face and green eyes. His glossy, pale grey (silver) hair is long and straight, with bangs neatly trimmed. He wears a light purple kimono with a pale grey (almost white) haori layered over it, creating an elegant appearance.