Arc 15Sabo Reunited and New Threats

Ace reunited with Sabo while Natsu strengthened the Uchiha Clan’s position and received Issho’s pledge to defend the West Blue. The Second Golden Lion confronted the Straw Hat Pirates, leaving them struggling to protect the Thousand Sunny from a boulder assault.

  • Madara returned safely to Origin Island after fighting Kaido, and Natsu reflected that Imu had withdrawn Uranus without revealing its full power.
  • Luffy and the Straw Hat Pirates read about the Uchiha Clan’s growing influence as they sailed toward the New World.
  • Ace reached Baltigo with Yaoyu and Yakumi, found Sabo, and helped him recover memories of their childhood and brotherhood.
  • Izuna improved Impure World Reincarnation while Natsu trained Sasuke and warned him to master the fundamentals instead of relying on flashy moves.
  • Teach killed a giant and ate the Mythical Zoan Titan Giant Fruit, then transformed into a fifteen-meter giant and tested its power.
  • King protected the Beasts Pirates after Kaido’s defeat, while the Second Golden Lion destroyed G-2 Marine Branch and drew the Marines’ attention.
  • Issho met Natsu, pledged his sword to defend the West Blue, and accepted command of its joint defense.
  • The Straw Hat Pirates fought Weevil until the Second Golden Lion arrived and demanded their submission, then attacked the Thousand Sunny with boulders when Luffy refused.
Chapters 353–377 Vol. 4 Read

Ch. 353An Eight-Hundred-Year-Old Fox Was Indeed Hard to Scheme Against

Uchiha Natsu’s attempt to bait Imu into using Uranus failed when the ancient ruler withdrew its killing intent, leaving Natsu worried about the weapon’s power and his lack of a counter. Madara returned to Origin Island after defeating Kaido, where Izuna greeted him and was told to resolve his Reanimation restraints before going out to fight.

  • Uchiha Natsu sensed Uranus’s deadly pressure fade and lamented that Imu had pulled back.
  • Uchiha Natsu reflected that he had used Madara’s fight with Kaido to provoke Imu into revealing Uranus, but Imu had remained cautious.
  • Uchiha Natsu considered Uranus a world-ending weapon that could kill anyone below the Six Paths level outside Origin Island.
  • Izuna Uchiha met Madara Uchiha at the Origin Island docks and confirmed that he had returned unharmed.
  • Madara Uchiha dismissed Kaido as a tough opponent but no more, while Izuna said he wanted to test his skills next.
  • Madara Uchiha told Izuna to resolve the restraints of his Reanimation body before leaving the island.

Ch. 354Curious Luffy

As the Thousand Sunny sailed toward the New World, Luffy and the Straw Hats learned about the Uchiha Clan’s safe, prosperous waters and decided to visit Origin Island. The chapter then shifted to Baltigo, where the exhausted Uchiha twins complained about spending more than half a year being constantly pursued by Ace’s company.

  • Luffy read about Madara Uchiha and connected him to Natsu and Ace, while Nami scolded him for speaking casually about the powerful man.
  • Nami saw the newspaper’s account of the Uchiha-controlled waters and became eager to trade there, and Sanji agreed that the crew should visit.
  • Robin explained that the Uchiha Clan had expanded methodically and brought order to the West Blue before growing into the New World.
  • Luffy called out to Madara, asking where Natsu was and whether Ace was doing well, as the Thousand Sunny continued toward the New World.
  • Near Baltigo, Yakumi and Yaoyu stood by their speedboat and complained about their exhausting recovery, during which Ace had visited them from dawn until dusk.

Ch. 355Two Weary Brothers: Why Was There Someone So Outrageously Sociable?!

Ace traveled with Yaoyu and Yakumi to Baltigo to find his long-lost brother Sabo, whom he had learned was alive and serving in the Revolutionary Army. The ship reached the island, and Ace prepared for their long-awaited reunion.

  • Natsu’s discovery that Sabo had survived and joined the Revolutionary Army reignited Ace’s desire to reunite with him.
  • Ace persistently persuaded Yaoyu and Yakumi to escort him from Spirit Awakening Island to the Revolutionary Army headquarters.
  • Yaoyu and Yakumi confirmed that the barren island ahead was Baltigo and reminded Ace that they would not interfere in the Revolutionary Army’s affairs.
  • Ace thanked the twins and watched the island, eager to find Sabo as their ship approached the guarded dock.

Ch. 356Dragon's Surprise

The Uchiha vessel arrived at Baltigo, prompting Dragon to put the Revolutionary Army on alert before allowing the visitors to land. Yaoyu, Yakumi, and Ace came ashore, and Dragon greeted them cautiously as Ace searched for someone he had long wanted to see.

  • A Revolutionary Army lookout spotted an Uchiha vessel approaching Baltigo and sounded the alarm.
  • Dragon ordered the soldiers not to intercept the ship, explaining that Ace was aboard and the visitors did not appear to be seeking a fight.
  • Dragon ordered the main gate opened and instructed his forces to remain on alert without acting rashly.
  • Yaoyu, Yakumi, and Ace disembarked from the black vessel and walked onto the shore.
  • Dragon greeted the visitors and let his gaze settle on Ace.

Ch. 357Ace: I'm Here to Find Sabo

Ace reached Baltigo with Yaoyu and Yakumi and told Dragon he had come to find his sworn brother Sabo. Dragon accepted Ace’s memories as proof, explained that Sabo had lost his past, and led Ace into the city to meet him.

  • Dragon asked why Ace had come, and Ace said he wanted to find Sabo, his sworn younger brother.
  • Ace recounted private details about Sabo and their childhood, convincing Dragon that they had been brothers.
  • Dragon confirmed Sabo was in Baltigo and explained that a head injury had erased his memories of Ace, Luffy, and their past.
  • Ace said he would introduce himself to Sabo again even if Sabo did not remember him.
  • Dragon led Ace, Yaoyu, and Yakumi through Baltigo toward the Revolutionary Army’s base as soldiers gathered along the lanes.

Ch. 358Curious Members of the Revolutionary Army

Ace met Dragon at Revolutionary Army headquarters to find his lost brother Sabo, who had no memories of his past. When Sabo arrived, Yaoyu and Yakumi waited outside while Ace watched Sabo’s familiar writing posture, recognizing a childhood habit as their reunion began.

  • Yaoyu and Yakumi calmly counted the Revolutionary Army soldiers watching them as Dragon led them and Ace into the reception room.
  • Dragon told Ace that Sabo was away on a mission and remembered nothing from before the Revolutionary Army rescued him.
  • Ace said that he had come to tell Sabo he had brothers and family, and that Sabo would always be his little brother.
  • Yaoyu and Yakumi left the room to wait outside, predicting that Sabo would cry and someone would give him a handkerchief.
  • Sabo returned and began working on a battle report without turning around, while Ace silently recognized his familiar childhood habit of tilting to one side as he wrote.

Ch. 359Brothers Reunited

Ace reunited with Sabo and restored his memories of their childhood and brotherhood, then promised to take him home. The chapter ended with Izuna Uchiha angrily criticizing Tobirama Senju’s flawed Impure World Reincarnation technique.

  • Ace greeted Sabo, and Sabo’s memories of their childhood and Ace’s apparent death returned.
  • Ace pulled Sabo into an embrace, and Sabo wept as he remembered their promise and the years he had felt someone was missing.
  • Ace promised Sabo he would take him home, and the brothers held each other close.
  • Izuna Uchiha slammed an annotated scroll onto a table in Origin Island’s ninjutsu research laboratory and complained that Tobirama Senju’s Impure World Reincarnation was a careless, unfinished technique.

Ch. 360Izuna Uchiha's Frustration

Izuna Uchiha complained while relentlessly optimizing Tobirama Senju’s Impure World Reincarnation and the Hashirama Cells genetic drug. Natsu then decided to correct Sasuke’s growing arrogance with a practical combat lesson after spotting dangerous flourishes in his training.

  • Izuna Uchiha identified wasted Chakra and flaws in Tobirama Senju’s Impure World Reincarnation, then resumed refining it while grumbling.
  • Caesar Clown and Vallen wondered who Tobirama Senju was, while Natsu watched and chose not to interrupt Izuna Uchiha’s work.
  • Izuna Uchiha improved the jutsu’s stability and Chakra efficiency and increased the Hashirama Cells genetic drug’s extraction efficiency.
  • Natsu recalled that Sasuke had awakened his Three-Tomoe Sharingan and become arrogant after receiving praise from his Clan Academy companions.
  • Natsu watched Sasuke practice at the courtyard Training Ground and noticed his unnecessary, showy movements created a dangerous opening.

Ch. 361When the Skies Cleared and the Rain Stopped, Sasuke Felt Like He Could Do It Again

Natsu corrected Sasuke’s prideful fighting style and began putting him through rigorous basic training. At Revolutionary Army headquarters, Sabo took Ace to his private room so they could talk in private, and the brothers reminisced about their childhood.

  • Sasuke tried to impress Natsu with flashy spins, but Natsu warned that the moves would leave him vulnerable in battle and reminded him that Three Tomoe was only the beginning.
  • Natsu told Sasuke to abandon flashy movements and strengthen his fundamentals, then challenged him to use his strongest Fire Release technique.
  • Sasuke launched Great Fire Extinguishment at Natsu, who calmly dodged it and told him to improve his control before trying again.
  • Sasuke trained with Natsu until nightfall and later told Rin that Natsu was not human, which Rin silently agreed with.
  • Sabo pulled Ace away from the crowded reception room and brought him to his simple private room at Revolutionary Army headquarters.
  • Ace and Sabo joked about their personalities and recalled sharing a cramped bed as children.

Ch. 362Brothers Catch Up

Ace and Sabo discussed Luffy’s coming voyage and the Uchiha Clan, then reaffirmed their bond as brothers. At Revolutionary Army headquarters, Dragon asked Yaoyu and Yakumi to deliver his request for a meeting with Uchiha Natsu, and Yaoyu agreed to pass it along for Ace’s sake.

  • Ace told Sabo that Luffy was training under Rayleigh and would eventually encounter the Uchiha Clan, but would bear them no hostility because they had saved Ace.
  • Sabo observed that Ace had become steadier and more caring, and Ace agreed to keep being his big brother.
  • Dragon told Yaoyu and Yakumi that he wanted to meet Uchiha Natsu to discuss the balance and future of the sea.
  • Yaoyu explained that he could not guarantee Natsu would receive or answer Dragon’s request.
  • Dragon gave Yaoyu his encrypted Den Den Mushi and asked him to relay the request; Yaoyu agreed to deliver it personally for Ace’s sake.

Ch. 363Dragon's Request

Yaoyu and Yakumi ended their meeting with Dragon and carried his request for Natsu back to Origin Island, while Ace sent greetings to Whitebeard and Marco. Dragon and Sabo were left with a new covert line of communication to the Uchiha, though Natsu’s response remained uncertain.

  • Yaoyu told Dragon he would convey the request to Natsu but made no promises, then he and Yakumi left with the Encrypted Den Den Mushi.
  • Ace asked Yaoyu to tell Whitebeard and Marco that he was well and planned to return to Origin Island after some time.
  • Yakumi warned Ace not to end up in Impel Down again, and Ace insisted his previous imprisonment had been an accident.
  • After leaving the Revolutionary Army’s hearing range, Yaoyu and Yakumi joked about Ace’s trips to Impel Down and decided Chunwu could bring him prison food next time.
  • Dragon told Sabo that sending the Den Den Mushi had established the Revolutionary Army’s first hidden line of communication with the Uchiha, though he could not predict whether Natsu would respond.
  • Ace reflected on Yaoyu and Yakumi’s quiet concern for others and told Sabo that he found the Uchiha interesting.

Ch. 364Blackbeard Teach's Movements

Teach and the Blackbeard Pirates defeated a giant carrying the Mythical Zoan Titan Giant Fruit on a ruined island. Teach created the fruit by killing the giant and began eating it, as its power started to awaken within him.

  • Teach found the unconscious giant after a brutal battle that left the Blackbeard Pirates badly wounded.
  • Teach ordered Burgess, Doc Q, Van Augur, and Lafitte to restrain the giant while he placed an apple on its chest.
  • Teach shot and killed the giant, causing the apple to transform into the Mythical Zoan Titan Giant Fruit.
  • Teach ate the newly formed fruit, and its power surged through him.

Ch. 365Mythical Zoan, Titan Giant Fruit

Teach gained the Mythical Zoan Titan Giant Fruit’s immense physical power and prepared to return to the New World with his battered crew. In Natsu’s courtyard, Natsu finished training Sasuke, while Setsuna waited and watched.

  • Teach transformed into a fifteen-meter giant covered in dark-gold fur and tested his strength by blasting distant reefs apart with a punch.
  • Teach told his injured Blackbeard Pirates to set sail, and Jesus Burgess, Van Augur, Doc Q, and Lafitte reacted to their captain’s new power.
  • At Natsu’s courtyard, Natsu held Sasuke down with a Shadow Clone during training while Izumi and Setsuna watched.
  • Natsu dismissed the Shadow Clone and told Sasuke to clean up before dinner at Aunt Mikoto’s house.
  • Sasuke bowed to Setsuna and left, and Izumi went to fetch ointment for his bruises.

Ch. 366The Side Effects of the Long-Lived Species

Natsu dismissed concerns about the Uchiha clan’s declining birth rate and prioritized educating its children. Meanwhile, King found the gravely wounded Kaido and brought him back to Wano, where doctors treated him and declared him temporarily out of danger.

  • Setsuna told Natsu that the Uchiha birth rate had fallen by more than seventy percent since the clan gained ten-thousand-year lifespans, despite its population exceeding twenty thousand and seven thousand children being born.
  • Natsu told Setsuna not to pursue population growth and to focus on educating and training the clan’s children, whom he planned to select for focused training.
  • Setsuna reassured Izumi that Natsu had said there was no need to rush over the birth rate.
  • After searching the sea for three days, King found Kaido alive but gravely wounded on a tiny unnamed island.
  • King carried Kaido to a warship, which raced back to Wano Country while ship doctors treated him through the night.
  • The doctors finished treating Kaido and said he was temporarily out of danger.

Ch. 367King the Conflagration's Edge

King concealed Kaido’s condition after Madara Uchiha left him gravely injured, then went alone to stop Barossa from exploiting the Beasts Pirates’ weakness. King’s fiery assault engulfed Barossa’s fleet, though the battle’s outcome remained unknown.

  • The ship’s doctor warned King that Kaido’s injuries might leave lasting effects on his state of mind, and King ordered Onigashima sealed and all information about Kaido classified.
  • King recalled Madara Uchiha’s overwhelming power and kept watch beside the unconscious Kaido, who faintly moved his fingertips without King noticing.
  • Barossa gathered his fleet and headed for Wano Country’s border, intending to raid the Beasts Pirates while Kaido was incapacitated.
  • King left Queen in charge on Onigashima and flew alone to confront Barossa’s forces.
  • Barossa boasted that the Beasts Pirates would fall, then rushed onto the deck as King’s flaming wings appeared overhead and fire consumed his flagship and nearby warships.

Ch. 368The Beasts Pirates' Edge: Second Golden Lion

After King crushed a pirate fleet threatening Wano, the Beasts Pirates secured their borders while Kaido remained unconscious but showed a faint sign of recovery. Meanwhile, the Marines assessed the destruction of G2 Branch by the mysterious Second Golden Lion and set his bounty at 1.9 billion Beli, while Sengoku blocked a proposal to send an admiral after him.

  • King displayed the defeated pirate captain’s head at Wano’s border, warning other crews not to invade the Beasts Pirates’ territory.
  • At Whole Cake Island, Linlin praised King’s leadership, while Katakuri kept Madara Uchiha’s updated combat assessment beneath the battle report.
  • King told the unconscious Kaido that the border was secure, then saw one of Kaido’s bandaged fingers twitch.
  • Marine intelligence identified the unknown attacker of G2 Branch as the Second Golden Lion, whose fleet used the Float-Float Fruit to lift the fortress into the sky.
  • Marine Headquarters set the Second Golden Lion’s bounty at 1.9 billion Beli, and Sengoku suppressed calls to send an admiral to eliminate him.

Ch. 369Troubled Marines, an Unexpected Visitor to Origin Island

Natsu investigated the mysterious Second Golden Lion after the newcomer destroyed a Marine branch, while the Marines and pirates reeled from the New World's upheaval. The chapter ended with Tetsuka reporting that a blind swordsman had appeared on Spirit Awakening Island.

  • Garp recalled capturing Shiki and lamented that the dead pirate's legacy had brought fresh trouble to the Marines.
  • Pirates across the New World reacted to Kaido's defeat, King’s efforts to stabilize the Beasts Pirates, and the Second Golden Lion’s destruction of G-2 Marine Branch.
  • Natsu read Setsuna’s report about the Second Golden Lion and ordered the Intelligence Department to search the East Blue for clues about Shiki’s giant beast experiments and hidden traces.
  • Natsu considered whether the Second Golden Lion had inherited Shiki’s legacy or was merely using his name, and chose to wait and observe.
  • Tetsuka reported that a lone, unaffiliated blind swordsman had appeared along the coast of Spirit Awakening Island.

Ch. 370Blind Swordsman, Issho!

Natsu learned that the blind swordsman Issho had chosen to seek out the Uchiha Clan rather than join the Marines, and he arranged for Issho to come to Origin Island as an honored guest. After arriving, Issho sensed the island’s immense strength and recognized the foundation behind the Uchiha Clan’s order.

  • Tekka reported that Issho had waited on Spirit Awakening Island before requesting a meeting with the Uchiha Clan’s leader.
  • Natsu identified Issho as the powerful swordsman who had abandoned the Marines and ordered Tekka to bring him to Origin Island without searches or weapon inspections.
  • Issho arrived at Origin Island and sensed more than ten formidable Admiral-Emperor Level auras across the island.
  • The Uchiha powerhouses sensed Issho’s Observation Haki but withdrew their scrutiny when they recognized Tekka escorting him.
  • Issho understood that the Uchiha Clan’s strength surpassed any active Four Emperors and reflected that his decision to seek them had not been impulsive.

Ch. 371Natsu's Goal, Issho's Allegiance

Issho met Natsu to learn whether the Uchiha order in the West Blue could endure, and Natsu revealed that he had built it to establish his clan as the world's sole divine authority, not to save the people. Issho accepted a role defending the Divine Domain while keeping his personal vow to protect the innocent.

  • Tekka escorted Issho to meet Natsu in the courtyard.
  • Issho asked Natsu whether the West Blue's classless, peaceful order could last.
  • Natsu said he had overthrown the Celestial Dragons to replace them with the Uchiha Clan as the one true god, and described equality as a foundation for its rule.
  • Issho accepted that the Uchiha order protected the weak and pledged his blade to defend its borders, while refusing to aid slaughter or expansion.
  • Natsu placed the West Blue under Issho's joint defense and ordered that those who upheld order live in peace while those who caused chaos be executed.
  • Issho bowed and accepted Natsu's command as a subordinate.

Ch. 372Dragon's Invitation

Yaoyu and Yakumi brought Natsu Dragon’s offer to cooperate with the Uchiha, but Natsu decided to delay his reply until the Revolutionary Army revealed more of its plans. In Dressrosa, Doflamingo gathered the Donquixote Family before dawn because Uchiha clan members were arriving for an inspection.

  • Yaoyu and Yakumi returned to Origin Island and told Natsu that Monkey D. Dragon wanted to discuss cooperation between the Revolutionary Army and the Uchiha.
  • Natsu judged Dragon’s offer sincere but chose to lock away the encrypted Den Den Mushi and wait until Uchiha’s New World plans were more secure and Dragon had revealed more of his forces.
  • Natsu dismissed Yaoyu and Yakumi to rest, then watched Sasuke train with his Shadow Clone.
  • Doflamingo summoned every Donquixote Family officer to the palace great hall before dawn because Uchiha clan members were coming to inspect Dressrosa.

Ch. 373Doflamingo's Welcome, Edward Weevil

Chunwu and Rin inspected Dressrosa’s port supply station while Doflamingo tried to welcome them without causing trouble. Meanwhile, Buckingham Stussy and Edward Weevil found the Straw Hat Pirates on a deserted island, and Stussy ordered Weevil to attack Luffy.

  • Doflamingo recalled how the Uchiha youths had faced Drought Jack and asked Trebol whether the clan’s support was necessary.
  • Chunwu and Rin arrived in Dressrosa with nineteen Uchiha clan members, and Doflamingo greeted them with an elaborate bow.
  • Chunwu declined Doflamingo’s banquet and said the group would inspect the port facilities before returning to their ship.
  • Buckingham Stussy and Edward Weevil approached the Thousand Sunny while the Straw Hat Pirates rested on a deserted island.
  • Stussy ordered Weevil to cut down Luffy, and Weevil stepped forward with his naginata.

Ch. 374Straw Hat Pirates, Weevil

The Straw Hat Pirates prepared a coordinated ambush for Weevil, but his overwhelming strength gave him the advantage in the opening clash. The battle continued with Zoro, Luffy, and Sanji struggling to withstand his attacks while Stussy believed Weevil was winning.

  • Zoro, Luffy, and Sanji spotted Weevil approaching while Nami retreated and the other Straw Hat Pirates quietly prepared to target his weaknesses.
  • Weevil swung his naginata at Luffy, who dodged the blow as it blasted a deep pit into the beach.
  • Zoro blocked Weevil's follow-up sweep with three flying slashes, but the force drove him backward.
  • Sanji attacked Weevil with a flaming kick, but Weevil blocked it and struck Sanji's shoulder, sending him several meters away.
  • Stussy watched the exchange and grew more confident as Weevil appeared to overpower the Straw Hat Pirates.

Ch. 375Stussy's Objective! Conflict Erupts! A Sudden Attack!

The Straw Hat Pirates adapted to Weevil’s overwhelming strength and began to pin him down. Zoro abandoned his finishing attack to save the Thousand Sunny from a falling boulder, and Golden Lion Shiki’s airborne ship appeared above the battlefield.

  • Zoro, Sanji, and Luffy adjusted their tactics while Robin, Franky, and Usopp helped restrain and pressure Weevil.
  • The Straw Hat Pirates turned the fight around, leaving Stussy stunned as Zoro prepared a decisive strike against Weevil.
  • A huge boulder fell toward the Thousand Sunny, forcing Zoro to abandon his attack and leap up to cut it apart.
  • Golden Lion Shiki’s pirate ship emerged from the clouds and floated above the beach.

Ch. 376Second Golden Lion Appears! An Invitation!

Second Golden Lion arrived above the beach and invited Weevil and the Straw Hat Pirates to join his Flying Fleet. Luffy refused twice, and the chapter ended with Golden Lion’s warships encircling the island and aiming their cannons at the beach and the Thousand Sunny.

  • Second Golden Lion arrived aboard a flying warship and offered Weevil and the Straw Hat Pirates power and status if they joined his Flying Fleet.
  • Luffy rejected the offer and declared he would become the freest man on the seas and claim the One Piece.
  • Second Golden Lion’s smile vanished, and he summoned two more flying warships to surround the island and aim their cannons at the beach and the Thousand Sunny.
  • Zoro, Sanji, Usopp, Franky, and Robin prepared to defend the crew as Second Golden Lion demanded that Luffy submit.
  • Luffy refused again and insisted that only he could become the One Piece.

Ch. 377Conflict Erupts! The Straw Hat Pirates in Crisis!

Second Golden Lion forced Stussy and Weevil to submit, then attacked the Thousand Sunny with a rain of boulders when Luffy refused him. As the crew struggled to defend the ship, Weevil blocked Luffy, Zoro, and Sanji from reaching it.

  • Second Golden Lion pressured Stussy and Weevil to join him, and Stussy agreed to protect them from his threat.
  • Second Golden Lion launched hundreds of boulders at the Thousand Sunny after Luffy gave an answer he hated.
  • Nami, Franky, Usopp, and Robin tried to stop the falling rocks, but their attacks could not hold them back.
  • Luffy, Zoro, and Sanji rushed to defend the ship, but Weevil blocked their way on Stussy's orders.
  • Luffy struck Weevil's chest with a hardened fist, but Weevil barely moved.
Arc 15 of 25
Arc 15 of 25