Ace

Biodata

Feature	Value
Name	Ace (艾斯)
Alias(es)	Fire Fist Ace 12
Species/Race	Human
Gender	Male
Affiliation	Captain of the Spade Pirates; later a member and son of the Whitebeard Pirates 14 46
Occupation/Role	Pirate; former Spade Pirates captain
First Appearance	Chapter 12

Power Progression

Stage / Realm / Level	Chapter	Notes
Flame-Flame Fruit baseline	12	Demonstrates Logia elementalization by reforming from fire after Yota's stone projectile passes through his flames.
Observation Haki development	19	Begins learning Observation Haki after Yota explains Haki to him; his potential surges during the Vice Admiral battle.
Vice Admiral-level breakthrough	20 21	Defeats a Vice Admiral while Yota handles the other, proving that the Spade Pirates now have a second combatant capable of supporting him.
Armament Haki awakening	22	Awakens Armament Haki through combat against Haki users; continues refining it through sparring with Yota.
Conqueror's Haki confirmed	24	Uses Conqueror's Haki to subdue hostile Wano villagers without fighting them.
Seastone training period	32 33	Trains for over two months alongside Yota and Yamato while restrained by Sea Stone handcuffs, driven by Yamato's superior strength.
True flame-powered flight	37	Develops sustained, maneuverable flight by using flame jets from his palms to balance himself in the air.
Jinbe defeated	40	Defeats Jinbe in roughly a day, a substantially faster victory than expected.
Conqueror's Haki Infusion	161	Re-enters Kaido's battle after Yota's sacrifice and attacks with Conqueror's Haki Infusion.
Magma-Magma/Stone-Stone Fruit fusion	282	Receives a fused Devil Fruit from Yota, gaining magma generation, rock control, and the ability to form gigantic magma golems.

Background / History

Ace entered the Grand Line as the captain and overwhelming main combatant of the Spade Pirates. His crew's combat ability lagged far behind his own, leaving him to protect them in most dangerous encounters. Even before mastering Haki, his physical strength and Flame-Flame Fruit placed immense pressure on Yota. 12 14 22

He recruits Yota after bringing the ill Deuce to Drum Kingdom for treatment. Ace recognizes Yota's fighting ability, medical skill, and Munch-Munch Fruit as assets too valuable to overlook. 13 14

Ace initially sails to prove himself and surpass his father, but repeated encounters with New World powers force him to recognize the gap between himself and the Four Emperors. Whitebeard's paternal treatment and the Moby Dick's family-like atmosphere eventually lead Ace and the Spade Pirates to join the Whitebeard Pirates. 40 44 46

Appearance

Ace first appears as a bare-chested young man in a hat who can condense from a mass of flame into human form. 12

• Wears a hat. 12
• Commonly manifests flames around his hands, feet, and body in combat. 19 37
• Later receives fingerless gloves marked with a sun pattern. 147

Personality

Ace is bold, impulsive, and intensely confident in his own strength. He repeatedly seeks out overwhelmingly powerful opponents—including Kaido, King, Jinbe, and Whitebeard—rather than avoiding them. 24 34 40 41

Despite this recklessness, he is protective of his crew and takes his role as captain seriously. Yamato's strength initially pressures him because he believes the captain should remain the crew's shield, motivating him to train rather than rely on his crewmates for protection. 31 32

He is compassionate toward people in need. He warms Deuce when the New World's cold nearly freezes him, befriends Tama in Amigasa Village, and has Yota heal Jinbe after defeating him. 22 25 40

Abilities & Skills

Flame-Flame Fruit

Ace's original Logia Devil Fruit allows him to create, control, and transform into fire.

• Elementalizes to avoid physical attacks and reforms his body from flames. 12
• Can block naval cannon fire and unleash attacks such as Fire Fist and Divine Fire: Shiranui. 15 37
• Uses flames to warm allies, including Deuce during the New World's sudden freeze. 22
• Developed palm-based flame propulsion for sustained aerial flight and high-speed maneuvering. 37
• His flames are disadvantaged against large quantities of seawater and were dispersed while facing Whitebeard's tsunami. 41

Haki

Ace develops all three major forms of Haki through battle and training.

• Learns Observation Haki after Yota introduces him to the concept. 19
• Awakens Armament Haki after fighting Vice Admirals who can strike Logia users. 22
• Uses Conqueror's Haki to incapacitate hostile villagers in Wano. 24
• Learns Conqueror's Haki Infusion and uses it against Kaido after Yota's final attack. 161

Fused Magma-Magma and Stone-Stone Fruit

Yota later replaces Ace's original fruit with a fused Devil Fruit combining Magma-Magma and Stone-Stone abilities. 282

• Produces magma with greater raw power than his former flames. 282
• Manipulates rocks directly and turns them into magma. 282
• Creates super-sized magma golems. 282

Close-Quarters Combat

Ace combines his Devil Fruit power with physical strength and Haki rather than relying solely on elemental attacks.

• Fought two Navy Vice Admirals and defeated one during the clash. 19 20
• Trained under Sea Stone restraint with Yota and Yamato for more than two months. 33
• Identified King's flame-based defense and speed-switching combat pattern during their aerial battle. 37
• Defeated Jinbe, then later overwhelmed Jack during the Wano conflict. 40 160

Equipment / Weapons / Items

• Flame-absorbing gloves — Fingerless gloves that absorb and condense Ace's fire, substantially increasing the temperature of his flames. 147
• Flame Ship — A small, alloy-built vessel designed by Deuce and powered by Ace's flames; exceptionally fast but vulnerable to large waves due to its size. 147 148

Relationships

• Yota — Recruited Yota into the Spade Pirates after recognizing his combat and medical value. Yota supports Ace's growth, heals his injuries, helps develop his flight, and later gives him a fused Devil Fruit. 14 21 37 282
• Deuce — Ace's first mate and initially the Spade Pirates' doctor. Ace brings the ill Deuce to Yota for treatment; Deuce later designs the Flame Ship for him. 12 14 147
• Yamato — A fellow Spade Pirate who becomes Ace's training rival and combat partner after gaining freedom from Kaido's Sea Stone restraints. 31 32 161
• Whitebeard — Initially Ace's target as a rival, then his adoptive father after Ace joins the Whitebeard Pirates. Whitebeard's strength and paternal treatment reshape Ace's goals. 40 41 46
• Shanks — Meets Ace because of his connection to Luffy. Shanks recognizes Ace's heritage and sends Whitebeard a letter about him. 39
• Jinbe — Challenges Ace to stop him from reaching Whitebeard; Ace defeats him but has Yota treat his injuries afterward. 39 40
• Tama — A young Wano girl whom Ace befriends and teaches to weave straw hats. 25
• Luffy — Ace's younger brother. Shanks shows Ace goodwill because of this connection, and later discusses Luffy's freedom and resilience with Ace. 39 292

Story Role / Major Arcs

Recruitment of Yota

Ace arrives in Drum Kingdom while carrying the feverish Deuce and encounters Yota. Impressed by Yota's strength, Devil Fruit, and healing ability, he invites him to join the Spade Pirates. 12 14

Vice Admiral Battle

While the Spade Pirates rest on an island, Ace is attacked by two Navy Vice Admirals. Initially pressured by their Armament Haki, he develops rapidly in battle and defeats one opponent while Yota defeats the other. 19 20 21

Wano and Yamato

After the Spade Pirates are shipwrecked in Wano, Ace uses Conqueror's Haki to stop the villagers' attack and chooses to help the country. He befriends Tama, raids food supplies for Amigasa Village, confronts Yamato, and helps free Yamato from Kaido's Sea Stone handcuffs. 24 25 26 31

Training and the Beasts Pirates' All-Stars

Ace trains with Yota and Yamato for over two months, determined not to fall behind them. When King confronts him, Ace fights him in the air for hours, discovers the Lunarian's defensive pattern, and forces King to withdraw. 32 33 37

Challenge to Whitebeard

Ace meets Shanks, defeats Jinbe, and finally challenges Whitebeard. Whitebeard overwhelms him, but Ace orders his crew to escape rather than allow them to be caught in his defeat. 39 40 41

Joining the Whitebeard Pirates

After spending time aboard the Moby Dick and repeatedly experiencing Whitebeard's fatherly concern, Ace accepts Whitebeard as Pops and joins the Whitebeard Pirates with the rest of the Spade Pirates. 44 46

Liberation of Wano

Ace receives flame-absorbing gloves from Yota and joins the expedition to liberate Wano. He propels the Flame Ship to Wano, battles Jack during the wider war, and returns to confront Kaido after Yota's apparent death. 147 148 160 161

Later Empowerment

Ace declines Yota's invitation to depart with him, choosing to grow stronger rather than become dead weight. He later receives Yota's Magma-Magma/Stone-Stone Devil Fruit fusion, gaining a direct answer to the former weakness of his Flame-Flame Fruit against magma. 172 282

By Chapter 292, news that Ace has found Laugh Tale reaches Luffy and devastates him temporarily. 292

Notable Quotes

“Sorry, I can't be caught by you before I surpass that person!” 16

“Save your boasting until after you've beaten me!” 34