Chapter Summaries

Karn prepared to leave the Shinobi World after organizing his businesses, forces, and newly gathered resources, while Danzo expanded Root through brutal child training. Tsunade stayed at Kushina’s home for the liquor and ended up overhearing Kushina and Karn that night.

• Karn told Kushina about his extensive businesses and offered to let her manage them after he left.
• Karn strengthened his organization’s security with bioengineered super soldiers and placed a five-hundred-million-ryo bounty on those behind the attacks on his subordinates.
• Danzo inspected Root’s training base, ordered harsher training, and learned that Shizune had completed numerous assassination missions.
• Karn collected technology and metal resources to take back to the Marvel Universe, then returned to Konoha to say goodbye to Kushina.
• Tsunade visited Kushina, stayed for Karn’s liquor, and heard Kushina and Karn together through the night.

Karn prepared weapons technology for sale and met with Councilman Malick, who asked about Wakanda. The meeting ended with Karn challenging Malick over S.H.I.E.L.D.'s classification of Wakanda.

• Karn made shrinking alchemical items for Aoda, reducing the snake to arm-length while preserving his strength.
• Karn ordered Ivan Vanko to prepare samples of the Pent Group's older weapons technology for sale to the military and others.
• Stern invited Karn to dinner, where Karn found Councilman Malick waiting to discuss Wakanda.
• Malick said S.H.I.E.L.D. had classified Wakanda as level seven after failing to investigate it thoroughly.
• Karn described Wakanda as a technologically advanced civilization with valuable vibranium, then asked Malick what level Native Americans had been rated.

Karn negotiated with Malick over Wakanda, offering Hydra an Extremis Virus Serum in exchange for valuable business resources and revealing himself as a Hydra member before slipping away unnoticed. He later received a call from Malick, who apologized after learning Karn was their “friend.”

• Malick explained that Wakanda’s defenses and military could not be located, and Karn urged him to look beyond the serum toward Wakanda’s greater potential.
• Karn gave Malick an Extremis Virus Serum, a transaction letter of intent, and a USB drive containing Pent Group weapons materials in exchange for shares and resource channels.
• Karn whispered “Hail Hydra” to Malick and vanished from the guarded room, leaving Stern and Malick to discover that their surveillance had failed.
• Malick told Stern that Karn was a Hydra member, and they reviewed the serum contract and Pent Group’s weapons catalog and videos.
• Karn spoke with his new assistant, Sharon Nia, and considered whether Pent Group could take over Stark Industries’ weapons department.
• Malick called Karn to apologize for his earlier attitude after realizing Karn was part of Hydra.

Karn negotiated with Malick to trade the Extremis Virus Serum’s formula and development data for three mining and steel companies, as HYDRA prepared to target Wakanda. After returning to New York, Karn arranged military weapons sales and company acquisitions, while Sharon Carter secretly reported on him to S.H.I.E.L.D.

• Malick explained HYDRA’s plan to provoke a conflict with Wakanda by sacrificing S.H.I.E.L.D. agents and U.S. military personnel.
• Karn and Malick agreed to exchange the Extremis Virus Serum’s detailed formula and development data for two steel alloy companies and a mining group, with the final transfer delayed for two months.
• Karn returned to New York by private plane, instructed Sharon Nia to arrange two new aircraft and vintage liquor, and told Laura about the coming acquisitions.
• Karn contacted Betty to accompany him when he approached Thaddeus Ross about weapons sales to the military.
• Sharon Carter recorded details about Karn and his acquisitions, then sent her intelligence and video footage to S.H.I.E.L.D. for analysis.

Sharon Carter asked Nick Fury for more support to investigate the Pent Group, while Karn met the Maximoff siblings and offered to help develop their abilities. The next day, Karn demonstrated his new weapons to the military, and General Ross questioned his motives.

• Sharon Carter told Nick Fury that the Pent Group had acquired Bolic Mining and New Delhi Metallurgy and requested specialist teams to investigate its research and Betty Ross's circle.
• Karn discussed Umbrella's weapons and super-soldier program after bringing Betty and the Maximoff siblings back from Sokovia.
• Karn told Pietro and Wanda Maximoff that he wanted to study their abilities with their consent and offered help with their revenge against Tony Stark.
• Aoda served tea to Karn, Betty, Pietro, and Wanda, after which the twins asked for time to consider Karn's offer.
• Karn and Betty demonstrated new weapons and auxiliary exoskeleton armor to military officers at the Los Angeles base.
• General Ross questioned Karn about selling weapons to the military, and Karn said he was doing it for profit and reassured Ross about Betty.

A Hydra operation framed Wakanda for the deaths of a drug lord and S.H.I.E.L.D. agents, setting up a conflict with the United States. T'Chaka began investigating the incident while Malick and Karn planned to escalate the scheme with staged fighter-jet crashes.

• A drug lord fleeing S.H.I.E.L.D. reached Wakanda's stealth barrier and demanded entry, but T'Chaka ordered the guards to drive him away.
• As S.H.I.E.L.D. agents confronted the Wakandan Women's Guard Team, the drug lord and both agents suddenly exploded and their remains began decomposing.
• T'Chaka ordered the guards to secure the scene and planned to determine the cause of death before contacting S.H.I.E.L.D.
• Malick explained to Karn that Hydra had manipulated the drug lord and sacrificed an agent to frame Wakanda, then revealed plans for two U.S. fighter jets to crash there in three days.
• Karn claimed his escape technology came from the Red Skull and the Tesseract, then left as Malick's assistant reported that the security system had again failed to record how Karn got out.

Nick Fury struggled to delay a growing U.S. push toward war with Wakanda, while Karn prepared Umbrella to profit from the coming conflict. Karn also gave Wanda and Pietro the freedom and resources to pursue revenge against Tony Stark themselves, provided they cooperated with his research.

• Nick Fury refused to give Victoria Hand more information about the failed mission, then learned from Alexander Pierce that the military had given S.H.I.E.L.D. two days to investigate the fighter-jet crashes near Wakanda.
• Nick Fury submitted a mildly favorable assessment of Wakanda, but U.S. military leaders pushed the president and Congress to treat the country as a threat, while the FBI and CIA received orders to investigate.
• Karn prepared Umbrella’s mercenaries and super soldiers for a future war against Wakanda, intending to seize its information and vibranium, as Red Queen helped stir anti-Wakanda discussions online.
• Karn’s research center studied Wanda and Pietro’s abilities, and Karn told the siblings they could pursue revenge against Tony Stark whenever they wished while offering them legal, financial, and practical support.

Karn arrived in Alabasta and offered Princess Vivi and King Cobra his services to end the drought and uncover the criminals threatening the kingdom. After gaining their trust, he positioned himself to pursue Crocodile and study Devil Fruit abilities.

• Vivi questioned Igaram about the criminal group troubling Alabasta, and Karn appeared in the palace and knocked Igaram unconscious with a Stunning Spell.
• Karn introduced himself to Vivi as a merchant who knew magic, and she told him about the drought, rising crime, and her worries for Alabasta.
• Karn offered Vivi supplies, rainmaking, and help hunting criminals, then bound the trading coordinates to her and woke Igaram.
• Vivi vouched for Karn to Igaram and brought him to King Cobra, who agreed to hear his offer.
• Karn told Cobra he could find the mastermind behind Alabasta’s troubles and bring rain in exchange for payment, while planning to target Crocodile and investigate Devil Fruit powers.

Karn demonstrated his ability to make rain and presented Cobra with prices for supplies and services, including a commission to resolve Alabasta’s hidden crisis. Cobra agreed to hire him after Karn revealed that Crocodile was behind the kingdom’s drought and crimes, and Karn asked for Seastone Handcuffs so he could capture him.

• At a banquet with Cobra and Vivi, Karn dismissed Dance Powder and sent a shadow clone out to summon rain over Alubarna.
• Karn gave Cobra a price list for rainfall, food, weapons, potions, and resolving the Nefertari family’s secret, while Vivi objected to the costs.
• Karn made a torrential downpour fall over Alubarna, convincing Cobra that his rainmaking ability was genuine.
• Karn revealed that someone was targeting Pluton, and Cobra agreed to pay three hundred million Beli to resolve the crisis.
• Karn identified Crocodile as the mastermind behind Alabasta’s recent drought and crimes, and Cobra agreed to prepare Seastone Handcuffs for his capture.

Karn defeated and captured Crocodile, then took control of Baroque Works and began turning Rainbase into a base for his business and research. Nico Robin followed his orders while weighing whether to stay with him, and Karn told King Cobra that Crocodile had been dealt with.

• Crocodile attacked Karn in the desert, but Karn evaded his attacks and took control of the sand.
• Karn blasted Crocodile’s legs apart, tortured him with the Cruciatus Curse, and controlled him with the Imperius Curse before securing him with Seastone Handcuffs.
• Karn brought Crocodile to Rainbase and ordered Nico Robin to summon all Baroque Works agents within one day.
• Nico Robin notified the agents and collected their information while wondering whether to stay with Karn to pursue her search for Poneglyphs.
• Karn told King Cobra through a Den Den Mushi that Crocodile had been dealt with and that he was handling Baroque Works in Rainbase.

Karn took over Baroque Works after defeating Crocodile, renamed it the Karn Chamber of Commerce, and intimidated its agents into obedience. He made Nico Robin vice president and offered her tools to evade the World Government, leaving her tempted to accept his support.

• Cobra and Igaram searched Rain Dinners while Karn discussed Nico Robin and her identity with her and Vivi.
• Karn refused to meet Baroque Works’ agents until they gathered, then Nico Robin revealed that their former boss, Crocodile, had been defeated.
• When thirty-one agents mocked Karn, he killed them with silent Confringo spells and warned the survivors not to challenge him.
• Karn renamed Baroque Works the Karn Chamber of Commerce, appointed Nico Robin vice president, and ordered the agents to follow her instructions.
• Karn told Nico Robin he knew her identity and goal, then offered her Polyjuice Potion and an Electrostatic Disguise Veil to help her avoid capture.

Karn researched whether Devil Fruit abilities could be separated from their users and successfully extracted a Sand-Sand Fruit Serum from Crocodile. He ended the chapter holding the serum, which could grant the fruit's power without its weakness to seawater and Seastone.

• Cobra paid Karn to bring more rain to Alabasta, while Vivi negotiated a discount and signed on as a supervisor for Karn's Rainbase project.
• Cobra and Igaram discussed Alabasta's finances and the firearms Karn sold, then argued over how to develop the kingdom.
• Nico Robin reported that Karn had put former Baroque Works members to work and received his offer of money and help securing an identity to visit Marine Headquarters and consult Alabasta's Poneglyph.
• Karn used Crocodile as a test subject while researching Devil Fruit users, and Red Queen's analysis revealed that a fruit's Lineage Factor could potentially be separated from its weakness to seawater and Seastone.
• Crocodile broke through his act of cooperation, but Karn knocked him unconscious and began extracting his blood; the experiment succeeded, producing Sand-Sand Fruit Serum as Crocodile died.

Smoker and Tashigi met Karn in Rainbase to discuss Crocodile’s death and offer him the vacant Shichibukai position, which Karn refused. Karn instead proposed selling weapons to the Marines and told Nico Robin he planned to take her to the Sky Island to investigate its Poneglyph and obtain resources.

• Smoker and Tashigi saw Princess Vivi directing citizens as they rebuilt Rainbase before meeting Karn in Rain Dinners.
• Smoker offered Karn Crocodile’s Shichibukai position, but Karn refused and offered to sell weapons to the Marines instead.
• Smoker told Tashigi to seek approval for the weapons purchase, warning that pirates might buy the arms if the Marines did not act.
• Nico Robin asked Karn whether she could manage his organizations while using his intelligence network to search for Poneglyphs, and Karn agreed to shelter and support her.
• Karn told Nico Robin that a Poneglyph was on the Sky Island and gave her a protective magical bracelet.
• Karn decided to pursue the Rumble-Rumble Fruit on the Sky Island after extracting the Sand-Sand Fruit Serum.

Karn accepted the World Government’s offer to become a Shichibukai after Smoker presented terms that included a hero’s public image, Marine firearm orders, and a travel pass. After demonstrating his Fiendfyre magic to Smoker, Karn prepared to travel to Sky Island with Nico Robin once his appointment was official.

• Karn continued investigating Devil Fruit genetics and asked Nico Robin to find information about Sky Island and the Knock Up Stream.
• Smoker offered Karn revised terms for joining the Shichibukai, including Marine firearm purchases and passage through Marine-controlled areas.
• Karn accepted the invitation and agreed not to sell firearms or ammunition to pirates.
• Karn trapped Smoker in a Fiendfyre cage to demonstrate his strength, then extinguished the flames and repaired the room with magic.
• Karn told Nico Robin they would set out for Sky Island after his Shichibukai appointment became official.

Karn and Nico Robin traveled to Sky Island so Karn could confront Enel and claim the Rumble-Rumble Fruit. Robin landed on Angel Island to gather information while Enel sensed the newcomers but mistook them for harmless animals.

• Smoker reported Karn’s abilities to Marine Headquarters, then ordered Tashigi to double the soldiers’ training and announced that he would triple his own.
• The World Government named Karn a new Shichibukai and portrayed him as a pirate-hating merchant, while Karn and Robin discussed the propaganda and prepared for trouble.
• Karn lent Robin the fire dragon and its carriage, then flew with her toward Sky Island after learning a Knock Up Stream had occurred near Jaya Island.
• Karn transformed into a phoenix and used Fire God Teleportation to bring Robin near Angel Island, where a bracelet slowed her fall and saved her.
• Robin headed toward the island’s paths to find locals, while Enel sensed her and Karn but dismissed them as a monkey and a bird; Ohm offered to help, and Enel declined.

Karn trapped Enel and the priests inside a barrier on the shrine and fought Enel with magic and Fiendfyre. He incapacitated Enel with a Killing Curse, then secured him in Seastone Handcuffs and an experiment box.

• Nico Robin arrived at Angel Island, where the White Berets announced they were searching for an illegally landed monkey and dismissed Robin as a legal visitor.
• Karn flew to Upper Yard Island, created shadow clones, and raised a barrier around Enel’s shrine that cut off the occupants’ Mantra.
• Karn appeared inside the barrier and surrounded the shrine with Fiendfyre; Enel struck Satori for showing fear and removed him from the four priests.
• Enel attacked Karn with lightning, but Karn disrupted the strikes using magic and insulating materials before countering with Fiendfyre and spells.
• As Enel prepared to break the barrier, Karn hit him with Avada Kedavra, caught him with the Levitation Charm, and secured him in Seastone Handcuffs and an experiment box.

Karn brought the Shandia and Gan Fall together after defeating Enel, seeking peaceful trade in Sky Island goods rather than control of the island. The Shandia and Skypieans agreed to negotiate peacefully, while Nico Robin prepared to visit the Poneglyph with Karn’s help.

• Nico Robin gathered information about Sky Island’s shell trade, and Karn promised to reveal the Poneglyph’s location after she completed her work.
• Karn planned to repurpose Enel’s priests and Ark Maxim and sent the Divine Guard to summon the Shandia, Gan Fall, and the White Berets.
• The Shandia and Gan Fall’s party met near Jaya Island, where the Shandia chief stopped Wiper from attacking and both groups went to Karn’s shrine.
• Karn told the Shandia and Gan Fall that he wanted to trade for Sky Island specialties and revealed that the Golden Bell was on the highest cloud island.
• The Shandia and Gan Fall agreed to peaceful negotiations over Jaya Island and to trade Sky Island goods with Karn’s chamber of commerce.

Karn assigned Robin to establish a Karn Chamber of Commerce outpost on Jaya Island while he developed his Devil Fruit research and strengthened his organization. After extracting and injecting Enel’s Rumble-Rumble Fruit ability serum, Karn gained control over lightning but discovered that mastering its techniques would require extensive practice.

• Karn tasked Robin with handling trade with Sky Island, taking over Jaya Island’s town with the Four Priests and Daz Bones’s group, and managing the Ark Maxim.
• Rainbase’s reconstruction turned Rain Dinners into the Karn Chamber of Commerce headquarters and added factories and a research base that supplied weapons mainly to the Navy.
• Karn enhanced Satori and the other Four Priests with Super Soldier Serum, then assigned them to work under Robin.
• Karn’s research showed that a person could potentially combine different Devil Fruit Lineage Factors if their body could withstand the side effects.
• Karn ordered Red Queen to transmit knowledge about the Rumble-Rumble Fruit’s abilities, but the transmission stopped at about fifty-three percent of the requested data.
• Karn extracted Enel’s Rumble-Rumble Fruit ability serum and injected it into himself, gaining lightning powers while postponing further data transmission until he had trained.

Diamante, Gladius, and Baby 5 visited Rainbase to negotiate an arms deal with Karn, but Karn rejected the Donquixote Family and decided to take Baby 5. The meeting ended with Diamante incapacitated, while Gladius faced Karn’s threat to leave or stay and plant trees.

• Diamante, Gladius, and Baby 5 arrived in Rainbase and heard that the daily thunder came from Karn’s training.
• Diamante brought the Donquixote Family officers to the Karn Chamber of Commerce, where Nico Robin recognized Baby 5 and contacted Karn.
• Karn appeared in the conference room, and Diamante realized Karn possessed the Rumble-Rumble Fruit.
• Baby 5 accepted Karn’s proposal after he said he needed her, but Diamante insisted she could not leave the Donquixote Family.
• Karn refused to do business with the Donquixote Family and used magic to bring Baby 5 to his side.
• Diamante collapsed after Karn’s attack, and Karn told the others to leave or stay and plant trees.

Karn defeated Diamante and refused the Donquixote Family’s proposed deal, prompting Doflamingo to declare war and head for Alabasta. As the family prepared to attack, Karn kept Baby 5 close and awaited Doflamingo’s arrival.

• Karn used the Rumble-Rumble Fruit to knock Diamante unconscious and threatened Gladius, who fled with Diamante to report back to Doflamingo.
• Karn welcomed Baby 5 and urged her to leave the Donquixote Family, while Nico Robin observed their growing closeness.
• Diamante and Gladius reported to Doflamingo, who agreed to take the Donquixote Family to war and travel to Alabasta.
• Diamante and Gladius planned to seize Karn’s Arms Factory, Sky Island, and Ark Maxim after killing him.
• Nico Robin told Karn that the Donquixote Family was approaching Alabasta with several hundred fighters, and Karn instructed her to keep Baby 5 company while he handled Doflamingo.