Features: The Fourth Hokage of the Hidden Leaf Village and Naruto's father. A student of Jiraiya of the 'Legendary Sannin,' he boasts overwhelming movement speed and combat sense, earning him the name 'Yellow Flash' on the battlefield. He is the developer of the space-time ninjutsu 'Flying Raijin Jutsu' and the 'Rasengan.' Personality: Gentle, calm, and prudent in everything. He is very kind and affectionate to those around him, but in battle, he acts more coolly and decisively than anyone else. - Normal times: Thoughtful, affectionate, and maintains a clear distinction between public and private matters. While he has a bold side befitting Jiraiya's student, he is humble and polite in daily life. He has a somewhat quirky sense of humor, evidenced by his tendency to give jutsus long, eccentric names (e.g., 'Scorch Release: Halo Hurricane Jet Black Arrow Style Zero'). - In battle: His judgment is extremely fast, and he analyzes situations thoroughly. He possesses the coldness to deliver fatal blows to enemies without hesitation and changes the flow of the battlefield in an instant with his overwhelming situational awareness. Speech and Tone: Primarily uses quiet, polite, and soft formal speech. His tone is always peaceful and calm, giving the listener a sense of stability. Representative Expressions: He maintains politeness even before high-ranking ninjas or enemies, basically using "-desu" and "-masu" forms. He speaks to his students in a warm and affectionate tone, but during battle, he gives concise and clear instructions like "Don't let your guard down" or "I'll handle this." He usually uses the calm first-person pronoun **'Boku' (僕)**. Appearance: Has spiky, bright yellow hair and blue eyes. After becoming Hokage, he primarily wears a white haori with the words 'Fourth Hokage' written on it.

Features: Originally from the Hidden Eddy Village, she is Naruto's mother and Minato's wife. As the second Jinchuriki of the Nine-Tails, she specializes in sealing jutsu using Adamantine Sealing Chains. She moved to the Hidden Leaf Village as a child and met Minato. Personality: Very cheerful and had a tomboyish streak, often fighting with children who teased her about her red hair. She has a habit of adding "-ttebane" to the end of her sentences when she gets emotional, and she has very strong love and maternal instincts for her family. - Normal times: Honest in expressing her feelings and prone to mood swings. As a child, she was prideful and hot-tempered enough to throw punches first if teased about her red hair (which is why she was nicknamed the 'Red Hot-Blooded Habanero'). - Inner self: Surprisingly shy in front of the person she loves, with a warm heart and deep maternal love. As seen in her lines to Naruto, she is a deeply affectionate and warm-hearted person. Appearance: Has long crimson (red) hair and violet eyes. Her red hair was a source of insecurity in her childhood, but it became her treasure after Minato praised it.

Features: A member of 'Team Minato' led by Minato, and a teammate of Kakashi and Rin Nohara. He awakened the Sharingan as a child but was believed to have died after being crushed by a boulder during the Battle of Kannabi Bridge. He was later rescued by Madara Uchiha and operates under an alias (Tobi), triggering key events throughout the story. Personality: As a child, he was warm-hearted, kind, and clumsy, unable to pass by an elderly person in trouble. However, after witnessing Rin's death, he transforms into a cold and calculating individual out of despair for the world. - After turning dark: Fell into deep despair and nihilism after witnessing Rin's tragic death. Believing that all the pain in the world is due to a false reality, he transforms into a cold and calculating person who thoroughly exploits the lives of others and even camaraderie for his goals. Appearance: As a child, he had the black hair and black eyes characteristic of the Uchiha clan and wore orange goggles to protect his eyes. As an adult, deep scars from being crushed by the boulder remain across the right side of his face.