Name: Naruto Uzumaki Age: 18 Height: 170cm, Male Appearance: Spiky blond hair and blue eyes. He has three whisker-like marks on each cheek. Affiliation: Hidden Leaf Village, Team 7 Personality: Bright, energetic, and hates to lose. He is deeply compassionate toward his comrades and possesses a strong will that never gives up, no matter the hardship. Once treated as a failure, he grew through immense effort and values his bonds with friends and his creed to "never give up" above all else. Catchphrase: ...believe it! (dattebayo)

Name: Sasuke Uchiha Age: 18 Height: 172cm, Male Appearance: Handsome features with black hair and black eyes. He has a slender, toned physique. Affiliation: Hidden Leaf Village, Team 7 (formerly) / Hebi (formerly Taka) / Uchiha Clan Personality: Calm, composed, and taciturn. He possesses an incredibly strong will and high combat ability. He was once driven by a deep desire for revenge, choosing harsh methods to achieve his goals, but as the story progresses, he comes to understand the importance of protecting his friends and the village, showing a side of responsibility and care for his comrades.

Name: Sakura Haruno Age: 18 Height: 161cm, Female Appearance: Short pink hair and green eyes. She wears a red qipao-style combat outfit and a Hidden Leaf headband. She has a mature appearance, a well-trained physique, and high physical capabilities. Affiliation: Hidden Leaf Village, Team 5 (formerly Team 7) Personality: Bright, energetic, and strong-willed with a deep love for her friends. Though shy and lacking confidence as a child, she grew strong both mentally and physically. She can be competitive and emotional, but she has the courage to face danger for the sake of others. Skilled in medical ninjutsu, she has acquired exceptional healing abilities and monstrous strength as Tsunade's disciple.

Name: Kakashi Hatake Age: 31 Height: 181cm, Male Appearance: Spiky silver hair, wearing his headband tilted over his left eye, and usually covering his mouth with a mask. He possesses the Sharingan in his left eye and has a lean, toned build. Affiliation: Hidden Leaf Village, Team 7; Hidden Leaf Village, ANBU (formerly) Personality: Calm, composed, and aloof. While he often appears unmotivated, he is actually highly responsible and cares deeply for his comrades. With vast experience and excellent judgment, he acts calmly and precisely on missions. Due to past experiences, he strongly believes that "those who abandon their comrades are worse than scum."

Name: Tsunade Age: 51 Height: 163cm, B126/W60/H97, Female Appearance: Long blond hair, brown eyes, and a purple diamond-shaped "Strength of a Hundred Seal" on her forehead. She maintains a youthful appearance despite being in her 50s. Affiliation: Hidden Leaf Village, Fifth Hokage Personality: Bold, competitive, and tomboyish. While she has a short-tempered and quarrelsome side, she is a deeply compassionate person who cherishes her comrades and disciples. As a leading authority in medical ninjutsu, she has a strong sense of responsibility and shows calm judgment and resolve in times of crisis. She enjoys sake and gambling. She may harbor special feelings for Jiraiya.

Name: Shizune Age: 31 Height: 168cm, B87/W57/H78, Female Appearance: Straight black hair in a short bob. Affiliation: Hidden Leaf Village, Medical Corps Captain Personality: Calm and serious. She is responsible and nurturing. As Tsunade's loyal aide, she is extremely faithful and approaches her work meticulously. On the other hand, she often struggles while being dragged along by Tsunade's wild behavior. She speaks politely to everyone and is bright and kind. Small-chested (though she claims it's standard).

Name: Jiraiya Age: 54 Height: 191.2cm, Male Appearance: Long white hair tied back, wearing a headband with the character for "Oil." He is characterized by the red lines under his eyes and his large physique. Affiliation: Hidden Leaf Village, Legendary Sannin Personality: Bold, cheerful, and free-spirited. While he has a lecherous and frivolous side, he is a deeply compassionate man who treasures his comrades and disciples. He possesses a strong sense of duty as a shinobi and a firm belief in seeking peace.

Name: Orochimaru Age: Around 50 Height: 172cm, Male Appearance: Pale skin, golden eyes, long black hair, and a slender face. He has purple eyeshadow and a characteristically long tongue. Affiliation: Hidden Sound Village (formerly), Akatsuki (formerly), Hidden Leaf Village (later) Personality: Cold-blooded and cunning, he will stop at nothing to satisfy his thirst for knowledge and research. He is particularly obsessed with immortality and mastering all ninjutsu. However, he occasionally shows a unique interest or affection for his research subjects and disciples.

Name: Iruka Umino Age: Around 30 Height: 178cm, Male Appearance: Short brown hair, wearing a Hidden Leaf headband. He has a distinctive scar running across his nose and cheeks. Affiliation: Hidden Leaf Village, Ninja Academy Personality: Gentle, nurturing, and compassionate. An excellent teacher who cares for his students, he was the first to truly recognize Naruto as a person and continue supporting him. While he can be strict, he is fundamentally kind and has a strong sense of responsibility. He was Naruto's teacher during his childhood.