Jazz

Biodata

Feature	Information
Name	Jazz (爵士)
Alias(es)	Boss Jazz; future/next Alliance Leader of the Star Alliance
Species/Race	Human 1522 1696
Gender	Male
Affiliation	Star Alliance; Phantom Group
Occupation/Role	Phantom Group Team Leader; designated successor to Ronglin; acting supreme authority of the Star Alliance when Ronglin and Jinbe are absent 1633 1955
Status	Active 2210

Power Progression

Stage / Realm / Level	Chapter	Notes
Fish-Man Karate trainee	1421	Jinbe trains him in Fish-Man Karate after Ronglin judges the Six Styles too difficult as a starting discipline; Jazz's martial talent is initially considered average.
Observation Haki awakened	1445	While watching Ronglin fight through palace guards, Jazz perceives time as slowed and becomes able to follow Ronglin's normally imperceptible movements.
Armament Haki awakened	1529	Awakens while resisting Chinjao's overwhelming Hasshoken during a surprise attack; his arm is injured and Ronglin intervenes.
Two-Haki combatant	1571	Possesses both Observation and Armament Haki; Ronglin begins personally training him as a future “weapon” of the Star Alliance.
Proficient Haki and martial-arts fighter	1793	Becomes proficient in both types of Haki, Fish-Man Karate, and the Six Styles; Ronglin judges him capable of handling Pacifistas with ease.

Background

Jazz is an orphaned young human who joined Ronglin's early circle and initially possessed a strong sense of justice but little confidence in his own strength. He trained diligently under Jinbe, though Ronglin considered his natural martial talent ordinary and doubted when he would awaken Haki. 1421 1498

His early insecurity centered on being protected in battle. Ronglin repeatedly pushed him to develop conviction rather than treat protection as shameful, while also teaching him that killing does not solve every problem and that people can be guided toward a better path. 1418 1434 1457

Jazz's perseverance paid off during the Ashil Kingdom palace incident, where he awakened Observation Haki. He continued training under Ronglin and Jinbe, later awakening Armament Haki while fighting Chinjao. 1445 1529

Appearance

Jazz is a young human whose initially ordinary, unremarkable appearance contrasts with his high standing in the Star Alliance. After sustained training, he becomes notably more muscular and taller. 1571 2015

• Was once described as a dirty, unremarkable child. 2015
• Can appear physically imposing beside the Phantom Group despite his youth. 1645
• His clothes are left in tatters and his body wounded after enduring Rooster Count's attack. 1808

Personality

Jazz is diligent, earnest, and highly conscious of his own shortcomings. Early on, he fears being a burden and resents having to be rescued, but channels that frustration into relentless training. He admires Ronglin deeply and seeks his approval after battles. 1418 1446 1565

He is compassionate toward civilians and subordinates, intervening against looters and attackers even when doing so puts him at risk. His protection of Anrield turns a former hostile pirate into a loyal follower. 1499 1691 1692

Jazz can also be impulsive, immature, and overconfident. He has revealed sensitive information carelessly, underestimated stronger opponents, and provoked Blackbeard to test Momousagi's loyalty. Over time, however, he develops into a calmer commander capable of intimidating senior alliance figures and directing large-scale operations. 1611 1869 1945 2070

Abilities & Skills

Observation Haki

Jazz's Observation Haki awakened when he watched Ronglin's movements during the Ashil Kingdom palace assault. It later grows enough to detect distant approaching enemies and read attacks in crowded combat. 1445 1673

• Perceives fast movements, attacks, killing intent, and flaws in an opponent's offense. 1518 1528
• Dodges gunfire and close-range strikes with minimal movement. 1676 1692
• Detects pursuit without alerting the enemy, allowing him to act cautiously with Shiryu. 1804
• Senses and responds to surprise attacks, including Duke Lodun's concealed rapier strike. 1568

Armament Haki

Jazz awakens Armament Haki while resisting Chinjao's assault. He uses it both offensively and defensively, including full-body Hardening. 1529 1571

• Reinforces Fish-Man Karate strikes and Six Styles techniques. 1676 1772
• Hardens his hand to catch Duke Lodun's hidden rapier. 1568
• Uses Hardening with Tekkai against Rooster Count's ranged attack. 1808
• His early Armament Haki is insufficient against opponents such as Chinjao, and stronger attacks can still break his defenses. 1529 1808

Fish-Man Karate

Taught by Jinbe, Jazz uses Fish-Man Karate to generate powerful shockwaves and fight effectively on land or underwater. 1421 1571

• Uses Three Thousand Var/Tiles to defeat skilled pirate captains and counter surprise attackers. 1518 1529
• Uses wide shockwaves to knock back groups of enemies and protect civilians. 1692 1772
• Defeats BIGMOM Pirates with Four Thousand Brick Fist. 1806
• Can combine its force with aquatic mobility while diving or swimming. 1696

Six Styles

Ronglin personally makes the Six Styles the foundation of Jazz's later martial-arts training. 1578

• Soru — explosive movement used to evade attacks, close distance, and pursue targets. 1651 1806
• Kami-e — fluid dodging technique used against gunfire and melee assaults. 1676 1772
• Shigan / Finger Gun — Armament-enhanced piercing attacks capable of killing armored opponents. 1772 1806
• Geppo / Moon Walk — aerial movement; Jazz can travel through the sky with “Moon Walk: Sky Dance!” 1676 1808
• Tekkai — iron-body defense, later reinforced with Armament Haki. 1808

Aquatic Endurance

Despite being human, Jazz has exceptional underwater mobility due to Jinbe's training. 1522 1571

• Swims for fourteen hours while carrying two men to safety. 1522
• Moves underwater at speeds comparable to an average Fish-Man. 1571 1696
• Dives for several minutes into deep, cold water to investigate a hidden Marine force. 1696

Leadership and Strategy

Jazz develops from a trainee into a battlefield commander and political successor.

• Leads the Elite Combat Group in a surprise boarding action, orders the powder magazine secured, and turns a captured ship against the enemy fleet. 1563
• Commands the Phantom Group, an Artificial Devil Fruit-user combat unit regarded as one of the Star Alliance's strongest weapons. 1633 1793
• Plans the “Ambush Ten” operation against Blackbeard, earning recognition that he has come into his own. 2015
• Lures Marines into a field of flammable warships and detonates it, inflicting heavy casualties while maintaining command of the battle. 2074

Relationships

• Ronglin — Boss, mentor, and adoptive guiding figure. Ronglin personally trains Jazz, names him his successor, and entrusts him with the future of the Star Alliance. 1571 1955 2082
• Jinbe — Fish-Man Karate instructor and mentor. Jazz is regarded as Jinbe's final disciple and gains his extraordinary swimming ability through Jinbe's training. 1421 2078
• Anrield — Former hostile pirate saved by Jazz from execution. Anrield swears his life to Jazz and later trains alongside him. 1499
• Caesar — Early companion whose apparent change from “evil scientist” helps Jazz understand Ronglin's belief in reforming people. 1434
• Shiryu — Ally assigned to protect Jazz on a dangerous mission; often observes Jazz's battles without intervening. 1794 1806
• Momousagi — Trusted protector and adviser appointed by Ronglin to keep Jazz safe and guide him away from harmful paths. 2015
• Phantom Group — Jazz's combat unit. Its members recognize him and Vice Team Leader Pig Head as their leaders. 1793
• Hawkins and Capone — Senior Star Alliance figures who initially challenge Jazz's authority before submitting to him as supreme commander. 2069 2070

Story Role / Major Arcs

• Ashil Kingdom Palace — Accompanies Ronglin into the palace, awakens Observation Haki, and begins receiving direct instruction in Haki. 1445 1446
• Anrield Incident and Pirate Alliance Rescue — Saves Anrield, leads an unauthorized rescue effort, escapes by swimming fourteen hours while carrying survivors, and is named future First Fleet Commander-in-Chief. 1499 1512 1522
• Chinjao Encounter — Awakens Armament Haki under extreme pressure but is unable to defeat Chinjao, reinforcing his determination to improve. 1529 1530
• Lodun Campaign — Commands the Elite Combat Group in his first major deployment, proving capable of independent battlefield decisions. 1560 1561 1563
• Phantom Group Formation — Becomes Team Leader of the Devil Fruit-user Phantom Group, despite initially doubting he can bear the responsibility. 1633
• Successor of the Star Alliance — Ronglin formally grants Jazz authority over the alliance in his and Jinbe's absence; the Four Great Fleets’ commanders later submit to Jazz's command. 1955 2070
• Marine War — Uses a warship-and-cannonball trap to inflict major Marine losses, demonstrating strategy comparable to Ronglin's. 2074
• Blackbeard Conflict — Provokes Blackbeard while deploying Phantom Group Zoan users, relying on an invisible protective barrier and Momousagi's intervention. 1945 2210

Notable Quotes

“I don't want to be rescued by you every time a battle breaks out!” 1418

“I am willing! Boss, don't worry, I will cherish this opportunity for practical combat and train myself well!” 1561