Chapter Summaries

After suppressing the prison riot, Rosen explained that he had been forced to use nearly all his combat abilities against the prisoners’ combined attack. He confronted Borsalino and Zefa for pretending to be held back, then argued that his rapid growth made their training plans impossible to keep up with.

• Catarina Devon fell from the ceiling at Rosen’s feet, and Rosen taunted her about believing she could defeat him.
• Rosen recalled how he had combined Haki, Susanoo, and his Weapon Fruit abilities to survive the prisoners’ attack and suppress the riot.
• Borsalino praised Rosen’s performance, and Rosen revealed that Borsalino had pretended to be affected by Bullet and Byrnndi World’s Conqueror’s Haki.
• Zefa admitted that he had also pretended to stay back, claiming he wanted to assess Rosen’s strength and improve his training plans.
• Rosen told Zefa that his strength changed too quickly for any training plan to remain useful, then turned his attention to a notification in his mind.

After Rosen’s battles with sixteen Infinite Hell prisoners, his Three Colors of Haki improved dramatically, and he told Zefa that becoming a Navy Admiral was already inevitable. He kept his training plan in place, ordered the surviving Catarina Devon, Baskerville Jott, and Avalo Pizarro returned to their cells, and hinted that he had a way to make Shiryu’s life in Impel Down less tedious.

• Rosen saw that his Armament, Observation, and Conqueror’s Haki had increased by 210%, 180%, and 128% after fighting the prisoners and cultivating Qi Body Origin Flow.
• Rosen told Zefa that he would become a Navy Admiral very soon and that no training plan could keep pace with his growth.
• Rosen decided to continue adding one prisoner each day to his Infinite Hell training plan.
• Rosen ordered Shiryu to lock up the barely surviving Baskerville Jott, Avalo Pizarro, and Catarina Devon again, saying they might be useful the next day.
• Rosen thanked Shiryu for warning him that Infinite Hell’s prisoners would resist being manipulated, then asked him to do something that would make life less boring.

After Rosen survived a coordinated prisoner ambush in Infinite Hell, he ordered a Head Chop Meal for the attackers as preparation for repeatedly pushing them to the brink of death. Back in the office, Borsalino suspected someone had orchestrated the riot, and Zefa named Barolick Redfield as the likely mastermind.

• Rosen asked Shiryu to give the thirteen prisoners who ambushed him, along with Catarina Devon and two others, a full meal before their coming ordeals.
• Shiryu agreed to the Head Chop Meal, and Rosen explained that he intended to use repeated near-death experiences to train himself against the prisoners of Infinite Hell.
• Zefa warned Rosen not to get close to Shiryu and said the prison guard reminded him of the Rocks Pirates.
• Borsalino pointed out that the prisoners had hidden their abilities and coordinated their actions as if someone had arranged the ambush in advance.
• Zefa identified Barolick Redfield as the suspected mastermind behind the riot.

Zefa explained Redfield’s rare, mind-altering Observation Haki and revealed that he had orchestrated the prisoner riot as a greeting gift for Rosen. The conversation ended with Zefa stressing Redfield’s significance to Rosen.

• Zefa described the highest level of Observation Haki and explained how Redfield had used it to influence the prisoners’ emotions.
• Rosen realized that Redfield had arranged the riot as a trap intended to kill him, and treated it as Redfield’s greeting gift.
• Borsalino questioned how Kong had been involved in Redfield’s capture, and Rosen explained that the Navy had concealed Kong’s defeat and credited Garp instead.
• Zefa described Kong’s good fortune and powerful subordinates, then asked Rosen whether he understood Redfield’s importance.

Zefa told Rosen how Byrnndi World had defeated former Fleet Admiral Steel Bone Kong, while Rosen continued training against the prisoners of Impel Down’s Infinite Hell. Meanwhile, Doflamingo hijacked a Marine fleet carrying Celestial Gold and demanded the title of Shichibukai, leaving Sengoku to consider the threat.

• Zefa explained that Byrnndi World had defeated Steel Bone Kong and said that even after years in Impel Down, World could still defeat a Four Emperors’ right-hand man.
• Rosen kept checking in at Infinite Hell and training as more prisoners were added to his daily fights.
• Prisoners who tried to escape or break through the walls were stopped by Borsalino, Zefa, and Shiryu, so they chose to fight Rosen instead.
• A Marine informed Sengoku that Doflamingo had hijacked a fleet transporting Celestial Gold and demanded the title of Shichibukai.
• Sengoku ordered the Marine to monitor Doflamingo’s movements, while Kuzan remarked on the pirate’s audacity.

Sengoku explained why Doflamingo sought the Shichibukai title and why the Marines would have to grant it, while Kuzan protested the system. Zefa then revealed that Rosen had killed every prisoner in Infinite Hell except Douglas Bullet and Barolick Redfield.

• Sengoku told Kuzan that Doflamingo had seized the Celestial Gold to secure the Shichibukai title and expand the Donquixote Family's power.
• Kuzan objected to making Doflamingo a Shichibukai, but Sengoku explained that the Five Elders would approve it to preserve the balance of the world.
• Kuzan demanded to know whether Marine Headquarters could resist the World Government's decision, and Sengoku said there was something they could do.
• Zefa called Sengoku and reported that Rosen had slaughtered the prisoners in Infinite Hell, leaving only Douglas Bullet and Barolick Redfield unreleased.
• Zefa explained that he had increased the number of prisoners released to fight Rosen each day, but Rosen had defeated them all.

Sengoku and Kuzan learned that Rosen had slaughtered nearly all the prisoners on Impel Down's Level 6 without being injured, and Zefa recounted how Rosen had spent his time in the prison. Rosen then said goodbye to Domino and left Impel Down with Borsalino and Zefa.

• Sengoku questioned Zefa about Rosen defeating the Level 6 prisoners, and Zefa confirmed that Rosen had done it alone without a scratch.
• Sengoku and Kuzan struggled to believe that Rosen had accomplished the feat after spending just over three months in Impel Down.
• Rosen thanked Domino for preparing his meals and told her he was leaving because his time in Impel Down was over.
• Domino wished Rosen success on the Grand Line and bowed to him before he left.
• Borsalino teased Rosen about Domino's feelings, while Zefa joined in, and Rosen said he had no time for romance.

Rosen explained that he would not start a family until he had wiped out the pirates—or at least the Four Emperors—and entered Impel Down’s Level 6 to settle matters with its prisoners. With Zefa and Borsalino shaken by his resolve, Rosen asked Chief Guard Shiryu to open the prisoners’ cells.

• Borsalino questioned why Rosen had rejected Domino, and Rosen recalled the pirates’ cruelty and explained his determination to protect the world as a Marine.
• Rosen declared that he would not start a family until the pirates were wiped out, then lowered his goal to defeating the Four Emperors.
• Zefa and Borsalino warned Rosen that his goal was nearly impossible, but he insisted that everyone needed something to strive for.
• Rosen, Zefa, and Borsalino entered Level 6, where Shiryu awaited them and acknowledged Rosen’s transformation and resolve.
• Shiryu explained that pulling the lever would open nearly every cell and drop the prisoners’ keys inside, then asked Rosen if he was certain.
• Rosen calmly told Shiryu to pull the lever.

Rosen opened the cells in Infinite Hell for one final battle, provoking the prisoners into attacking him together. He released his Bankai as they charged, beginning the last reckoning of his Marine internship.

• Shiryu pulled the lever, opening the Level 6 cells and dropping keys for the prisoners.
• The prisoners remained numb, remembering how Rosen had repeatedly defeated and returned them to their cells over the past months.
• Rosen declared that this would be their final release and urged them to use their blood to witness his graduation as a Marine.
• A prisoner charged Rosen, and Catarina Devon, Baskerville Jott, Avalo Pizarro, and the others followed in a united attack.
• Rosen drew his Zanpakuto and released Bankai: Thousand Cherry Blossom-Blade Display.

Rosen unleashed Thousand Cherry Blossom-Blade Display in Impel Down’s Infinite Hell and killed more than a hundred Level 6 prisoners with a torrent of Armament Haki-coated blades. He left after addressing Baronick Redfield and Douglas Bullet, warning them that their time was limited.

• Rosen released Thousand Cherry Blossom-Blade Display, filling Infinite Hell with giant Zanpakuto that scattered into countless Cherry Blossom Blades.
• Borsalino and Zefa watched Rosen’s immense display of power, while the Red Count and the Devil's Descendant rose in their cells and felt fear.
• Rosen infused billions of Cherry Blossom Blades with Armament Haki and sent them sweeping through Infinite Hell.
• The blade torrent dismembered more than a hundred prisoners before the blades returned to Rosen and vanished.
• Rosen warned Baronick Redfield that he had little time left, exchanged a chuckle with Douglas Bullet, and left with Zefa and Borsalino.

After Rosen killed more than a hundred prisoners in Impel Down’s Infinite Hell, Sengoku and Kuzan discussed how he had developed the ordinary Weapon Fruit into a top-tier ability. Sengoku approved Zefa’s request to release Barolick Redfield, but ordered Zefa, Rosen, and Borsalino back to Marine Headquarters to prepare for the release and Rosen’s Navy School graduation.

• Shiryu saw that Rosen had killed the released prisoners and left Infinite Hell to notify the staff to preserve their corpses.
• Sengoku and Kuzan heard Zefa’s report and recognized that Rosen had defeated more than a hundred powerful prisoners without injury.
• Kuzan said Rosen had turned the ordinary Weapon Fruit into a top-tier Paramecia through his talent, and Sengoku agreed that Rosen’s strength did not depend on his Devil Fruit.
• Sengoku approved Zefa’s request to release Barolick Redfield but ordered Zefa and Rosen to return to Headquarters so preparations could be made.
• Sengoku said he would arrange a venue for Rosen’s graduation from Navy School, and Zefa told Rosen and Borsalino they would return to Headquarters.

Rosen agreed to return to Marine Headquarters with Zefa and Borsalino, bringing his months in Impel Down to a close before graduating and facing the powers of the Grand Line. Before boarding, he turned Domino’s sword into a permanent Black Blade in three seconds, astonishing Zefa and Borsalino.

• Rosen chose to return to Marine Headquarters with Zefa and Borsalino instead of continuing his routine in Impel Down.
• Domino arranged for food to be brought aboard the warship, and Zefa and Borsalino left Rosen alone with her.
• Rosen asked Domino for her sword and coated it with Armament Haki until it became a Black Blade.
• Zefa recognized that Rosen’s Black Blade remained after he returned the sword to Domino, and Borsalino was stunned that Rosen had forged it in three seconds.

Rosen gave Domino a sword containing a sealed Haki construct that could let her use Susanoo Third Form for one minute, protecting her during prison riots. He departed Impel Down, leaving Domino determined to make good use of his gift.

• Rosen returned Domino's sword as a black blade and explained that he had sealed his Armament Haki inside it.
• Rosen revealed that the sword contained Transcribed Seal: Susanoo, allowing Domino to access Susanoo Third Form for one minute by connecting her own Haki to it.
• Zefa explained that the sword could let Domino withstand powerful prisoners, including Shiryu and possibly Magellan, during a riot.
• Rosen told Domino to keep the sword to protect herself from unexpected prison riots and asked her to keep cooking for him when he returned.
• Rosen boarded the warship and departed Impel Down, while Domino watched him leave and promised to use the sword well.

After leaving Impel Down, Rosen returned to Marine Headquarters with Zefa and Borsalino, reflecting on how his training had given him the strength to face danger. He revisited the Navy School and reunited with Gion, who was shocked by his changed aura and stature and asked about his time away.

• On the warship, Borsalino and Zefa teased Rosen about the Susanoo he had left in Domino’s saber.
• Rosen reflected that his time in Impel Down had given him real power to withstand unexpected danger.
• The warship returned to Marine Headquarters, where Zefa and Borsalino went to report while Rosen took a day off.
• Rosen revisited the Navy School where he had first arrived after transmigrating and returned to his old dormitory.
• Gion met Rosen, sensed that his aura surpassed Zefa’s, and asked him to describe his time in Impel Down.

Rosen used his Observation Haki Infant’s consciousness-transfer ability to show Gion what he had done during his months in Impel Down. After seeing his overwhelming growth and the prisoners he had fought, Gion asked to witness his coming battle with Byrnndi World and Bullet.

• Gion brought Rosen to her room and served him tea while asking about his time away.
• Rosen touched Gion’s forehead and used Observation Haki to transmit his memories of his time in Impel Down.
• Gion saw Rosen’s daily training and battles, including his rampage through Infinite Hell, and realized his strength now surpassed Zefa’s.
• Rosen clarified that Byrnndi World and Bullet were still in Impel Down because Sengoku had not released them yet.
• Gion asked to accompany Rosen to the coming battle, and Rosen told her to seek Tsuru’s approval.

Magellan released Byrnndi World from Impel Down on Sengoku’s orders, taking precautions against the Haki master’s power. Byrnndi World regained consciousness in a forest, smelled the sea, and vowed to end Rosen’s future.

• Magellan entered Level 6 and warned Redfield and Bullet that he would kill them if they resisted.
• Redfield dispersed Magellan’s poison with Haki, then lowered his guard after Magellan warned him about Sengoku’s orders.
• Magellan poisoned Byrnndi World until he lost consciousness, then opened his cell and carried him out.
• Bullet watched Byrnndi World being taken away and predicted that he would die whether Rosen won or lost.
• Byrnndi World woke in a forest, realized he had returned to the sea, and threatened Rosen.

Rosen and Byrnndi World unleashed Conqueror's Haki against each other, splitting the clouds above the island as Marines and Navy School students watched the live broadcast. Rosen faced Byrnndi World at the center of the clash, looking disappointed as the battle was about to begin.

• Sengoku questioned Zefa's decision to broadcast Rosen and Byrnndi World's battle, and Zefa explained that he wanted to teach the Navy School students and reprimand Smoker.
• Zefa criticized Smoker for relying on his Logia Devil Fruit, neglecting his training, and demanding early graduation before mastering Armament Haki Hardening.
• Sengoku redirected the Marines' attention to Rosen and Byrnndi World as their Conqueror's Haki erupted and collided, sending black-red lightning into the sky and tearing apart the clouds.
• Gion, Tokikake, Smoker, and the other Navy School students watched the broadcast and were shocked by Rosen's strength.
• Sengoku, Borsalino, and Zefa praised Rosen's rapid growth, with Zefa predicting that even Navy Admirals would soon look up to him.
• Rosen looked at Byrnndi World amid their Conqueror's Haki clash and showed disappointment.

Rosen challenged Byrnndi World to prove his strength and overpowered him in a clash of Conqueror’s Haki and swordsmanship. After a hundred strikes, Byrnndi realized Rosen surpassed him in all Three Colors of Haki, while Rosen had not yet used his Devil Fruit ability.

• Rosen rebuked Byrnndi World for being weaker than expected despite receiving better food in prison.
• Byrnndi demanded that Rosen prove his Conqueror’s Haki was stronger, and Rosen suppressed Byrnndi’s Haki with his own.
• Rosen claimed he surpassed Byrnndi in Armament Haki and future sight as well, prompting Byrnndi to challenge him to a sword fight.
• Rosen and Byrnndi clashed with Haki-coated black blades, tearing apart the island’s terrain and clearing the clouds overhead.
• After a hundred strikes, Byrnndi was driven back and recognized that Rosen surpassed him in all three forms of Haki, while Rosen had yet to use his Devil Fruit ability.

Rosen transformed his Weapon Fruit–forged Zanpakuto into Leopard King and stopped Byrnndi World's Great Swordsman-level slash with his bare hand. Sengoku and Zefa watched from a distant warship as Rosen revealed his Arrancar-like form.

• Rosen used Future Sight to recognize that Byrnndi World would switch from Haki to Great Swordsman swordsmanship if pursued.
• Byrnndi World remembered Douglas Bullet's warning and resolved to defeat Rosen, then unleashed a massive slash with both hands on his sword.
• Rosen called out “Grind, Leopard King!” and transformed into an armored, clawed form with a bone mask and tail.
• Rosen seized Byrnndi World's slash barehanded, stopping it with his Steel Skin.
• Sengoku watched through a visual Den Den Mushi and remarked to Zefa that Rosen's Weapon Fruit appeared to have made him resemble a Mythical Zoan user.

Rosen revealed his Ending Form, Cero, and overwhelmed Byrnndi World in a brutal exchange. The chapter ended with Byrnndi World on one knee while Zefa and Sengoku recognized the scale of Rosen’s strength.

• Rosen told Byrnndi World that Leopard King and Blade Like Fire were his Ending Form, provoking Byrnndi World to attack with a Haki-infused slash.
• Rosen stopped the slash barehanded and fired a Cero that shattered it into dust.
• Rosen used Leopard King’s speed to stomp Byrnndi World’s Black Blade down and kick him into the air.
• Rosen caught Byrnndi World’s sword and blasted him with another Cero, driving him into the ground.
• Byrnndi World emerged bloodied and dropped to one knee as Navy School students watched the broadcast and Zefa and Sengoku recognized Rosen’s terrifying power.