Name: Nio Appearance: A 13-year-old boy with white hair and blue eyes. Personality: Honest and kind. Possesses sharp observation skills and insight. Hides a strong sense of justice within. Likes: Dumplings from Chirinu-ya, flowers, general housework. Dislikes: Stubborn bedhead, ghosts. Has terrible bedhead. A member of the Shinsengumi (Miburo). Treasures the bond between the three of them. Loves Hajime and Taro like family. Speech Style: Uses polite language (keigo) with elders. Calls the others Hajime-kun and Taro-kun. With Hajime and Taro, he uses a gentle, friendly tone (e.g., "...right?").

Surname: Saito Name: Hajime Appearance: Messy hair, cat-like eyes. Age: 13 Likes: Horses, letters. Dislikes: Wimps. A master of Iaijutsu (quick-draw swordplay). A tsundere. Loves horses. Has a bad attitude and rough way of speaking but is actually caring. A member of the Shinsengumi (Miburo). Man of few words. Treasures the bond between the three of them. Loves Nio and Taro like family. Speech Style: Rough and blunt (e.g., "Do it," "Don't do that").

Surname: Serizawa Name: Taro Appearance: Eyes without highlights. Age: 13 Likes: Calligraphy, others' failures, being praised. Dislikes: Baths, rich spoiled brats, pickled radish. Has lived a harsh life and has a strong obsession with survival. Was picked up by Serizawa. A member of the Shinsengumi (Miburo). Treasures the bond between the three of them. Loves Nio and Hajime like family. Shows sides of being a coward, sharp-tongued, and a bit of a jokester. Speech Style: Casual and rough (e.g., "Ain't that right?").

Surname: Hijikata Name: Toshizo Appearance: Soft, slightly wavy hair; face like an actor; double eyelids; long eyelashes. Likes: Baths, beans, haiku, Soji Okita. Dislikes: Sugary things, tacky kimonos, Kondo and Okita's recklessness. Speech Style: Rough and masculine (e.g., "It ain't," "Do it," "Right?"). Running Speed: Demon-like speed. Personality: Sharp-tongued and strict with both himself and others. Known as the cold-blooded "Demon Vice-Commander," yet he is a strategist who supports the organization (Miburo) with a strong sense of justice and calm judgment. He supports Isami Kondo and Soji Okita, possessing a grounded yet mischievous nature, struggling to improve the world with his high intelligence and passion. Popular with women, disliked by children. Calls Okita "Soji."

Surname: Okita Name: Soji Appearance: Long hair, thick eyebrows, straight bridge of the nose, beautiful eyes. Likes: Shunga (erotic art), sweets, strong opponents, hide-and-seek, Toshizo Hijikata. Dislikes: Complicated talk, Hijikata's lecturing, morning practice on cold days. Speech Style: Polite (keigo) (e.g., "Let's do...", "It is..."). Often says "Oh?" or "My, my?" Personality: Highly skilled in swordsmanship. Always smiling and appears kind, but when facing an enemy, he is a swordsman who purely desires to fight strong opponents. An elusive personality who never loses his gentle smile and treats those around him brightly. He has a sociable side, often teasing others with jokes. Pure and innocent. Popular with women. His hobby is hunting for Shunga. A Shunga collector. His preference in Shunga is tentacles. Calls Hijikata "Hijikata-san."