Hell Pirates

Biodata

Feature	Details
Name	Hell Pirates (地狱海贼团)
Alias(es)	Yonko crew; later publicly known as the Underworld Country
Affiliation	Independent pirate force; formerly active across the North Blue, Grand Line, and New World
Occupation/Role	Pirate crew and military force opposed to the World Government and Celestial Dragons
Captain	Oboro, the Hell King / God Slayer 392 436
Flagship	Blood Pluton 513
Status	No longer publicly operates under the Hell Pirates name; its external identity became the Underworld Country 623
First Appearance	391

Power Progression

Stage / Realm / Level	Chapter	Notes
Founding trio	391 392	Oboro formed the crew with Dom and Dorans after more than a year of training in Noddis Kingdom.
Early North Blue force	402	After assisting Skann Kingdom and destroying Ice Island, the crew had grown from three to four members and established pirate-protected territory.
Expanding pirate force	412 413	The crew surpassed one hundred members through recruitment and absorption of defeated pirates; it numbered 128 during the clash with the Hawkins Pirates.
Grand Line invasion force	427 440	Several hundred members and three ships approached Reverse Mountain, though most recruits were treated as expendable probationary forces.
Impel Down breakout force	530	More than 600 prisoners escaped aboard the Blood Pluton, while Bullet and World joined the crew.
Yonko-level crew	552 614	Following the Summit War and the destruction of the Red Hair Pirates, the Hell Pirates were recognized as a Yonko crew; their total bounty exceeded 10 billion.
Apocalypse-era army	615	Their wider forces approached 100,000 personnel after widespread distribution of resource cards and recruitment of New World pirates.

History

Oboro, Dom, and Dorans entered Noddis Kingdom under false identities and purchased a secluded manor. There, Oboro trained the other two in martial arts and refined their combat styles. Dorans received a Demon Tribe bloodline card and an Experience Card, forcing him to adopt a disguise because the World Government already knew Oboro could empower and alter people. After the attention surrounding the God Slayer faded, Oboro formally established the Hell Pirates and prepared to sail again 391 392.

The crew immediately made its name in the North Blue by invading Fish Head Island, confronting Doflamingo through a Den Den Mushi, looting royal resources, and destroying pursuing fleets. It later sold weapons to Skann Kingdom, entered its war against Ice Island, and helped bring about Ice Island's destruction. The Hell Pirates subsequently extracted wealth, industrial resources, and political influence from nations that sought their military aid 393 394 397 402 412.

Their rapid expansion depended on intimidation, plunder, and recruitment. Pirate crews that surrendered could be stripped of their assets and absorbed; those who resisted were often killed. Oboro enhanced many recruits with low-tier Demon Tribe bloodlines, but regarded most of them as temporary manpower rather than genuine companions 412 413 424.

The Hell Pirates clashed with the Donquixote Family in the North Blue. Public reports claimed their ship had been destroyed and that only some members escaped, but Doflamingo privately made a deal with Oboro after being severely injured. The crew later cooperated with Germa in secret and annihilated a Navy force on Seabird Island 411 424.

At Twin Cape, the Hell Pirates used their attempted entry into the Grand Line as a diversion. While their larger force fought the Marines, Oboro and selected subordinates flew toward the East Blue to attack the Celestial Dragons. Survivors of that operation, including Rob Lucci, were recognized as true companions rather than disposable recruits 438 439 447.

The crew expanded further through raids on Impel Down, recruitment of powerful prisoners, and the acquisition of the Blood Pluton. In the New World, it became a direct threat to the World Government, participated in the Summit War, destroyed the Red Hair Pirates on Rusukaina, and emerged as a Yonko force 513 530 552 606 614.

During the apocalypse-era campaign, the Hell Pirates stopped pursuing territory and wealth as their primary objective. They instead destroyed countries outright, using mass card distribution to create a vast force of empowered pirates. By the time Oboro's faction became publicly known as the Underworld Country, the Hell Pirates name had ceased to be used externally 615 623.

Purpose

The crew was not formed to seek the One Piece or become Pirate King. Its original stated purpose was to drag the Celestial Dragons into hell 392.

Oboro later presented a broader vision: pirates were meant to connect the world and help its peoples survive a coming calamity, rather than merely burn, kill, and plunder. Most members did not embrace becoming saviors and remained motivated by power, violence, or personal gain 538.

Organization

• Captain's authority is absolute. Crew members are expected to obey Oboro without question 531.
• Secretly killing fellow members is forbidden. Internal rivalry is tolerated, but covert murder violates the crew's rules 531.
• Strength determines rank and influence. Status aboard the ship is explicitly tied to combat power 531.
• Official membership is earned. Recruits must survive trials, demonstrate usefulness, and compete for officer positions 413 438.
• Killing a Celestial Dragon became a requirement for official admission. Oboro imposed this condition on new members after the Impel Down breakout 530.
• Quality takes priority over numbers. Oboro intended the true Hell Pirates to remain a compact core of elite fighters, with fleets and temporary recruits serving as support forces 424 461.
• Probationary members are expendable. Oboro used many empowered pirates as diversions at Twin Cape and planned to discard most Germa-enhanced soldiers 424 437.

Ranks

Rank	Known Holder	Notes
Captain / Hell King	Oboro	Founder and unquestioned leader 392
Ten Infernal Commander / Night Wanderer	Dom	Founding member and first mate 392 428
Underworld Ghost Official / Ghost Messenger	Dorans	Founding member; empowered with a Demon Tribe bloodline 391 392

Known Members

• Oboro — Captain, founder, and source of the crew's card-based empowerment 391 392.
• Dom — Founding member, first mate, and the Night Wanderer; one of the few people Oboro explicitly trusts 428 514.
• Dorans — Founding member and Demon Tribe recipient; initially rose through opportunism and service to Oboro 391 392.
• Yurivich — Powerful swordsman recruited during the North Blue campaign; later destroyed a Pacifista alone 402 509.
• Rob Lucci — CP9 agent who infiltrated the crew, later remained with Oboro and abandoned the World Government 430 566.
• Enel — Former god of Skypiea; joined the crew after his defeat and later rescued Dorans from Kizaru 473 506.
• Kaka — Core member who participated in the Skypiea and Impel Down operations 470 518.
• Crocodile — Freed from Marine custody and accepted into the crew alongside Daz Bones 494.
• Daz Bones — Former Baroque Works officer who joined with Crocodile 494.
• Bullet — Recruited after being defeated by Oboro during the Impel Down breakout 530.
• World — Recruited for his Devil Fruit ability and hatred of the World Government and Celestial Dragons 530.
• Gild Tesoro — Joined after Oboro promised him a new Gran Tesoro and exploited his desire for revenge 569.

Equipment and Resources

• Blood Pluton — The Hell Pirates' crimson flagship, built through Galley-La Company. Its hull is decorated with ghost reliefs, chains, and torture instruments, giving it a deliberately menacing appearance 498 513.
• System cards — Oboro distributes bloodline, ability, experience, and item cards to selected subordinates. These cards were used to create Demon Tribe fighters, empower prisoners, and raise new officer-level combatants 391 468 615.
• Hell Pirates flag — Raised over conquered or protected North Blue territories as a declaration of pirate control 392 402 412.
• Three-ship formation — Before entering the Grand Line, the crew operated its main vessel alongside two smaller ships, including vessels intended to transport Germa soldiers 422 424.

Operational Methods

• Mercenary warfare — Sold looted weapons, accepted contracts from desperate kingdoms, suppressed rebellions, and seized payment through resources and industrial chains 397 402 412.
• Pirate predation — Robbed North Blue pirate crews, killed resisters, and absorbed survivors with useful bounties or combat potential 412 413.
• Card-based empowerment — Strengthened recruits with Demon Tribe bloodlines, combat experience, weapons, and stolen abilities 391 413 615.
• Survival trials — Used Impel Down's guards, monsters, and incoming Marine reinforcements to filter prisoners seeking passage aboard the Blood Pluton 518.
• Strategic deception — Used the Twin Cape naval battle to draw in the Marines and other major powers while Oboro's core group targeted the Celestial Dragons elsewhere 439.
• Mass destruction — During the apocalypse campaign, abandoned conventional territorial expansion in favor of annihilating nations and spreading chaos 615.

Major Conflicts and Alliances

• Donquixote Family — The Hell Pirates provoked Doflamingo, damaged his North Blue interests, and fought his forces. Their conflict ended temporarily in a private deal after Doflamingo was severely injured 393 411.
• Germa Kingdom — Oboro negotiated directly with Judge after capturing Niji and Yonji. The resulting secret arrangement involved strengthening Germa soldiers for future operations 422 424.
• Hawkins Pirates — The Hell Pirates attacked the Hawkins Pirates to enhance their reputation. Oboro spared Basil Hawkins, took their property, and gave Hawkins an Experience Card 413 414 415.
• World Government and Marines — The crew repeatedly attacked Marines, broke into Impel Down, killed Celestial Dragons, and became one of the World Government's greatest threats 424 447 530 552.
• Red Hair Pirates — The Hell Pirates fought Shanks' crew at Rusukaina, massacred them, and seized the opportunity to establish themselves as a Yonko force 601 602 606 614.
• Blackbeard Pirates — Oboro allowed Teach's surviving crew to escape and granted them power, expecting them to create further trouble for the World Government 468.
• Doflamingo's Dressrosa — After pressure from Shanks, Kaido, and the World Government, Oboro used Dressrosa as a temporary refuge and rebuilding site for Gran Tesoro 566 579.

Reputation

Period	Reputation
North Blue debut	Considered monster-class rookies after rapidly conquering Fish Head Island, surviving Doflamingo, and destroying Ice Island 395 402
North Blue expansion	Feared as pirate mercenaries and territorial predators whose flag appeared over small nations 412
Grand Line entry	Oboro's identity as the God Slayer became public, dramatically increasing the crew's notoriety 436
Post-Summit War	Recognized as the crew with the highest combined bounty on the seas, exceeding 10 billion 552
New World era	Publicly treated as a Yonko crew after the fall of the Red Hair Pirates 614
Apocalypse era	Its forces neared 100,000 personnel and became associated with the destruction of entire countries 615