Raid on Onigashima

The Raid on Onigashima was a large-scale invasion and battle that took place on the island of Onigashima in Wano Country during that year's Fire Festival. The invading forces were the Ninja-Pirate-Mink-Samurai Alliance, with the objective of defeating the Beasts Pirates, led by Kaidou of the Four Emperors and his allies, including Shogun Kurozumi Orochi and recent ally, fellow Emperor Big Mom.

They succeeded in their goal after much bloodshed, and with their victory, Wano was finally free from twenty years of tyranny and Kaidou's fiendish New Onigashima Project was foiled thanks to one of the alliance's main leaders, Monkey D. Luffy. In addition, both Kaidou and Big Mom were stripped of their positions as Emperors, with Luffy and Buggy chosen to take their places.

Details
The Ninja-Pirate-Mink-Samurai Alliance had successfully infiltrated Onigashima despite a few hiccups and snuck into the Beasts Pirates' stronghold, the Skull Dome, by using disguises. The raid happed just as Kaidou of the Four Emperors unveiled his master plan which he called the New Onigashima Project; Kaidou used his all-mighty dragon powers to lift the Onigashima and have the island land on the Flower Capital in order to turn Wano into a pirate paradise so he could prepare for war against the World Government itself.

Kaidou's fellow Emperor Big Mom was reunited with Charlotte Perospero, her first-born and an officer of the Big Mom Pirates, and stated that joining forces with Kaidou was her idea, so her son reluctantly accepted her decision After 20 years of waiting, the loyal retainers of Kozuki Oden attacked Kaidou with all their strength to avenge their master's death and help make his dream of opening Wano's borders a reality: this marked the start of a full all-out battle.

The Beginning of the Great Battle
After Kurozumi Kanjuro was exposed as the spy, Kiku asked him if there was any real companionship from their time together; Kanjuro took what she said as a complement to his acting skills, showing he had no remorse in betraying the Scabbards. This hurt Kiku even more as she fights Kanjuro. The rest of the Scabbards join in and knocked him out.



All the samurai present on the Live Floor were awestruck by the Straw Hat Pirates as they showed off their extreme battle prowess by defeating a large portion of the Beasts Pirates' forces with relative ease. Then as the Straw Hats stood united against their foes, Monkey D. Luffy the captain of this motley crew confidently proclaimed that he would be the one to defeat Kaidou. Since his former comrades tried to kill him, X Drake decided to lend his aid to the alliance despite some of the members being suspicious of him. The All-Star and gifted scientist Queen started infecting members of the alliance with his latest artificial virus Ice Oni and gave the antidote to Scratchmen Apoo for safe keeping. However, the Longarm was swiftly defeated by Roronoa Zoro, who then retrieved the antidote and gave it to Tony Tony Chopper so it could be mass produced and distributed to everyone.

Glimmers of Hope


Yamato, the son of Kaidou who wished to see the end of his father's regime over Wano, met Luffy and managed to get the super rookie to listen to him. Upon getting his attention, Yamato revealed that he is both a great admirer of Oden and a good friend of the late Portgas D. Ace. After hearing what Yamato had to say, Luffy removed the exploding handcuffs from Yamato's wrists that were preventing him from leaving the island. After which, they briefly fought side by side before splitting up. Luffy then finally made to the top of Kaidou's fortress. The Scabbards fought valiantly on the roof of the Skull Dome, but the samurai ultimately fell before Kaidou's superior might, so their leader Kin'emon begged Luffy to carry the weight of Wano's 20 years of suffering and defeat Kaidou in their stead, which Luffy agreed to without hesitation. To the surprise of both Kaidou and Big Mom, Luffy's Gomu Gomu no Red Roc did sufficient harm to Kaidou and to the two Emperors' anger Luffy once again declared he would be the next Pirate King.

Yamato began helping the alliance by helping Shinobu and Oden's son Kozuki Momonosuke escape enemy forces. After they found a place to hide and rest for a while Yamato gave Momonosuke his father Oden's journal which documented his travels with the Whitebeard and Roger Pirates, told him and Shinobu his backstory and about his desire to join the Straw Hat Pirates. Despite being infected by Ice Oni, the former yakuza boss Hyogoro defeated all the members of the Orochi Oniwabanshu and the Mimawarigumi, being cured shortly afterward by Chopper. Queen's callous sacrifice of their lives and Chopper's benevolence in saving them from Ice Oni with Chopperphage Nebulizer, caused many of the Waiters and Pleasures of the Beasts Pirates to switch sides, giving the alliance some much-needed support.



Though they landed a few hits and caused some significant damage, Luffy, Zoro, Trafalgar Law, Eustass Kid, and Killer realized that Kaidou and Big Mom were too powerful together and their only chance at winning was if they could separate the two, so they disarmed Big Mom of her special Homies and threw her off the roof. Napoleon and Prometheus manage to save Big Mom from falling into the sea, and she returned to the Skull Dome to hunt down her enemies for revenge. Big Mom then created a new special Homie named Hera to replace Zeus because she was tired of his constant failures lately.

Fighting the Tobiroppo


Luffy began chipping away at Kaidou's legendary durability after he became an advanced user of all three forms of Haki and actually fight him on equal grounds. Kanjuro recovered shortly after his previous fight and then tormented his former comrades by using his paint powers to create a fake Kozuki Oden, resulting in the death of Ashura Doji, but then Kanjuro was critically injured by Kin'emon. As he fell to the ground with mortal wounds, Kanjuro laughed and noted how fitting it was that the man who had been his closest "onstage" comrade had been the one to take him out, while Kin'emon still shed tears for Kanjuro despite his former friend's treachery.

After hearing a certain village she became fond of was destroyed, a rampaging Big Mom severally wounded two of the Tobiroppo; the siblings Page One and Ulti. This attack put Page One out of commission, but Ulti got back up and attacked Nami, Usopp and their young companion Tama; however, Nami knocked out Ulti after Zeus permanently fused with her Sorcery Clima-Tact, giving her the extra power that she needed to defeat the Tobiroppo. Thanks to the efforts of the alliance, every Gifter who ate Tama's special dangos became the child's obedient servants and on her order, attacked their ex-crewmembers. This act played a key role in turning the tide of the battle in the alliance's favor.



Queen, realizing that Tama was behind the chaos, attempted to attack her, but was stopped by Sanji, the son of a former colleague of his. Tama then ran away with Nami and Usopp, as they were targeted by the Beasts Pirates, now knowing she was the one responsible for the Gifters' betrayal. Tama was later protected by Daifugo and carried away by Speed, while Gazelleman promised to take care of her pet Komachiyo. Sanji and Queen then engaged in battle and throughout the entirety of their intense confrontation Queen irritated Sanji by constantly reminding him of his heritage; not only that, Sanji found the All-Star to be a dangerous adversary with his Brachiosaurus Devil Fruit and cybernetically enhanced body, but Sanji did not falter and persevered against this challenge; especially because of how Queen nearly killed his crewmate, Chopper.



In order to get back into the fight right away, Zoro had Miyagi and Tristan use a special Mink instant recovery medicine to heal his injuries he received from Kaidou earlier, but was warned that when the medicine wore off, he would be in even more pain. The highly skilled Who's-Who was a great challenge for Jinbe, new helmsman of the Straw Hats. The former Warlord initially had a hard time, due to facing not only the Tobiroppo, but all of his subordinates as well. However, mass confusion occurred when Tama's ability activated and the Gifters started turning against each other, forcing Who's-Who to face Jinbe in a one-on-one fight. As the two fought the Tobiroppo is revealed to be a Rokushiki master as he evades Jinbe attacks with Soru and Geppo, retaliated with Rankyaku and variations of Shigan that Jinbe never seen before such as Hagan and Gagan. Thankfully, Jinbe was able to match these techniques thanks to his Busoshoku Haki and mastery of Fish-Man Karate. It was then that Who's-Who disclosed himself to be to be a former CP9 agent who was imprisoned after he failed to prevent the theft of the very same Devil Fruit that was eaten by Jinbe’s captain, which was the source of his resentment towards the Straw Hat crew. As Who's-Who attacked Jinbe with the fullest extent of his abilities with effective techniques like Tekkai "Kibasen" and Shigan "Madara", Jinbe acknowledged the Tobiroppo’s talents and also admitted that his opponent’s past imprisonment was unjust, but he still did not tolerate the Tobiroppo for his prejudiced, generalizing way of speaking about fish-men, such as calling Jinbe fast for a fish-man out of water and equating his race's history with one of slavery. Despite all of his strength and ferocity Who's-Who was ultimately defeated by Jinbe’s finishing move Onigawara Seiken. The rowdy Sasaki proved to be a worthy adversary for Franky as the Tobiroppo charged at Franky with Tamaceratops and then Franky used General Suplex to slam Sasaki to the ground. The two enemies clashed again. but due to Franky’s lack of proper sword skills, Sasaki managed to break Franky’s giant sword in half with his drill-like sword. Sasaki even managed to heavily damage the durable mech-suit General Franky with Magnumceratops, but in the end, Franky emerged victorious against the Tobiroppo when he ejected from the Exo-armor and fired a Franky Radical Beam at Sasaki's main weak spot: his large belly. The violent and sadistic Black Maria posed a serious threat to Nico Robin, but thankfully Robin was prepared. Robin saw through Black Maria's Illusion Mist, while Brook did his share by keeping Black Maria's subordinates at bay. Black Maria proved her drug altered spider Devil Fruit abilities were a force to be reckon with between its super strong webbing, venom tipped legs and fire-breathing spider face. When Black Maria used an unusual staff to create even more flames, Brook gave Robin a better fighting chance after seeing that the true identity of the burning polearm is a tiny Pug Gifter running inside the wheel and generating flames: so, Brook used Cold Soul to freeze him. Black Maria took advantage of Robin being trapped by the raging fire and launched a barrage of attacks at Robin, while taunting her and claiming that she was a liability. However, it was revealed Black Maria underestimated Robin as the Straw hat had an ace up her sleeve; after using new fighting techniques she learned from her friends in the Revolutionary Army to put out the flames, Robin got the advantage over the Tobiroppo when she summoned the terrifying Demonio Fleur and finished her opponent off with Grand Jacuzzi Clutch before she herself collapsed from her wounds and exhaustion. After Brook defeated all of Black Maria's subordinates with Phrase d'armes: Orchestra, he continued to help by carrying the tired Robin away from enemy forces which also helped keep CP0 from capturing Robin.

Taking on the All-Stars


Marco fought bravely, but even he had difficulty fighting two All-Stars at once. Marco then decided it was about time to let the next generation of pirates take the stage, while he went to protect his other allies. Not long after re-entering the battlefield, Zoro engaged in a dual against someone who proved to be a most formidable foe: the strongest All-Star and Kaidou's right-hand man King, who is revealed to be a surviving member of the Lunarian race that is wildly thought to be extinct. Zoro quickly deduced King was not a true swordsman, but rather a vicious brute who uses a savage yet practical mixture of swordplay, hand-to-hand combat, the properties of his Pteranodon Devil Fruit, and his species’ natural ability to generate fire.



Knowing he could not do anything to help as a child, Momonosuke asked Shinobu to use her power to turn him into an adult. This allowed him to transform into a giant pink dragon so he could fly Luffy back to Onigashima after he was temporally thrown off and indisposed. After crashing all throughout the Skull Dome, Momonosuke finally conquered his fear of heights, opened his eyes and successfully flew Luffy back to the battlefield where Yamato was holding Kaidou off until Luffy's return. Kaidou was shocked to see Luffy was still alive and was amused to see Momonosuke in his new state.



After he was temporarily incapacitated from their previous encounter Jack faced Inuarashi once more with the intent of finally taking down the Scabbard. After transforming into his mammoth hybrid form, the All-Star grappled with the Inuarashi multiple times, trading one blow after the other, with neither one giving each other an inch in their fight. Inuarashi paid no mind to Jack’s mockery as he in intended to do a great justice to all of the minks that Jack hurt in Mokomo Dukedom. Around the same time Nekomamushi engaged a battle with Perospero after preventing him from shooting Sanji. This act infuriated Perospero as he attacked the Mink with all his might while Nekomamushi returned the favor with the goal of avenging the death of Pedro on Whole Cake Island. Inuarashi and Nekomamushi both pressed onward against tremendously strong opponents when the full moon was covered in clouds, thus causing both of them to transform out of their Sulong forms, leaving them very vulnerable at the hands of their enemies. Just when it seemed all hope was lost for Inuarashi and Nekomamushi as they were about to be killed by Jack with his Ancient Zoan fruit and Perospero with his candy axe respectively, the clouds cleared up due to a Haoshoku Haki clash between Kaidou and Luffy, and with the now visible moon they transformed into their Sulong forms once more, allowing them to simultaneously defeat the All-Star and the Charlotte Family's eldest son with Oden One-Sword Style: Inu Spire & Neko Niko Bam.

After leaving with Yamato so Luffy could face Kaidou alone, Momonosuke began to use his new power to create flame clouds to begin the important, long and arduous task of putting an end to Kaidou's sinister New Onigashima Project by preventing Onigashima from landing on the Flower Capital and instead change its course to have it safely land near the city as he moved the flying island with all of his might. As Zoro and King went deeper and deeper into their fight, the grudge between them grew; Zoro found the fact King tried to kill him with his Pteranodon wing instead of a sword to be insulting, while King took it personally when Zoro damaged his mask. Yamato started to head to the armory, because he knew of with all the explosives there, Onigashima was basically a giant flying bomb so he had to disarm the explosives in order to reduce the damage enough so that the island would remain intact.



When Queen used Brachiotoguros so his long neck could wrap around Sanji in order to crush every bone in Sanji’s body something miraculous happened. To everyone’s shock and Sanji’s anger the genetic modifications given to him by his hated father had finally awaken, which not only dramatically enhanced his already impressive physical abilities, but also granted him a nearly invulnerable body and an accelerated healing rate. Killer dueled Basil Hawkins as revenge for his earlier betrayal, with Hawkins trying to justify siding with Kaidou by claiming nobody could stand up to the Four Emperors, but Killer paid it no mind and continued to fight. Hawkins used his special straw dolls to transfer all damage to Killer's captain Kid which greatly hindered him in his and Law's battle with Big Mom. Fortunately, Hawkins made a grave miscalculation, since Kid's left arm was a metal prosthetic, it was unaffected by Hawkins' power, so Killer wound up slicing off his left arm with Jin Sonic and emerged victorious.



Wishing to prove himself to be a superior scientist to Sanji's blood-father Queen attempted to get the Straw Hats' cook to use his raid suit so he could compare Germa 66's technology with his own. Unfortunately for Queen, after Sanji realized that it was the reason for his body augmentations taking effect, he destroyed his raid suit so he could cut ties with his birth family for good. In the final stages of their battle Sanji was shocked and even more infuriated when he discovered that Queen's cybernetics could mimic the abilities of the raid suits of him and his brothers who he despised so much. After Queen was revealed to be the one to have struck the geisha O-Some while he was invisible, Sanji became so enraged that the demented scientist made him doubt himself earlier and decided he had enough of Queen's cruelty and disrespectful behavior. By combining his massively increased strength and speed, new exoskeleton, and Busoshoku Haki, Sanji was able create a devastating fighting style of blue flaming feet called Ifrit Jambe. With this new power, Sanji was able to overwhelm the All-Star with one powerful strike after another, then finally defeated Queen with Bœuf Burst that sent him flying out of the Skull Dome and off Onigashima.



As his battle with King raged on Zoro had a difficult time dealing with the All-Star and the renowned immense toughness and vitality of his species is known for, while the Straw Hat became grievously wounded and exhausted. Fortunately, Zoro hung in there, intensified his attacks, and soon discovered a weakness he could exploit; when the flames on King's back go down his speed increases exponentially but his durability drastically decreases. With this knowledge, Zoro was able to severely injure King and even the playing field. It was then that during the climax of his battle with the All-Star, Zoro developed a vastly more destructive variation of his style of swordsmanship thanks to the properties of the legendary Haki-powered sword Enma and his recently discovered Haoshoku Haki that he dubbed King of Hell Three Sword Style. When Zoro learned that the World Government was offering a lot of money for any information on King’s race, the All-Star did not bother to answer his question as he believed the Straw Hat would be dead soon. King came to acknowledge Zoro as a capable swordsman worthy of remembrance, but he was unwilling to surrender as he stated because he was a lunarian, Zoro was biologically incapable of defeating him which Zoro found to be a weak excuse. As King launched his final attack Omori Karyudon, Zoro was able to use King of Hell, Three-Sword Serpent: Ippyakusanjo Hiryu Jigoku to slice the giant flame dragon in half and cut off King's right wing in the process, causing the defeated All-Star to plummet from Onigashima. The result of this fearsome confrontation shocked both the Marys and CP0 to the core as this meant now all of the All-Stars and Tobiroppo had fallen in battle. Meanwhile, Franky appeared and saved an unconscious  Zoro from falling off the island too by grabbing him with his extendible arm and then rushed off to find Chopper so Zoro could be treated for his wounds.

The Final Clash with the Emperors


Before dying from his injuries, Kanjuro painted a fiery creature called Kazenbo that was sent to detonate all the explosives in the Skull Dome's basement. However, this plot was foiled thanks to the interference of Yamato who froze the bombs with Namuji Hyoga just in time. CP0 encountered Drake and Apoo, the latter of which recovered from his fight from Zoro and defected from the Beast Pirates as he desired to take down whoever won the war. Even though Drake dealt serious damage to a CP0 agent he was eventually incapacitated by a Shigan, while Apoo who realized he was no match against the might of two CP0 agents and retreated. Izou and CP0 agent Maha entered in a duel which ended in a double knockout, causing the former's death and causing CP0 to fail at capturing Robin.



As their fight with Big Mom continued, Kid and Law pushed themselves beyond their limits against the ruthless monarch of Totto Land as she decimated everything and everyone in her path. Law and Kid decided that their only option left was for both of them to use their awakened powers that would drain what was left of their stamina. Things looked especially dire when Big Mom used her soul power on herself to turn her broken bones into Homies to heal herself and exchanged one year of her own lifespan to make herself more powerful. This did not make them falter and with the last of their strength Law and Kid attacked Big Mom with their powerful combo attack of R-ROOM & Silent and Assign & Damned Punk sending her crashing through floor after floor. Big Mom also passed through the weapons vault and accidentally set off one of Yamato's frozen bombs, further injuring herself. As she fell below Big Mom cursed Roger for starting the "Great Pirate Era", then makes impact on ground, where she falls victim to another, much larger fiery explosion which finally defeats her. This was a huge victory, but it was not over yet. With the island mere minutes away from the capital, it was all up to Luffy to win his fight against Kaidou before time ran out. When Kaidou sensed that Big Mom was unbelievably out off of the fight with his Kenbunshoku Haki, he actually felt sad as he remembered the sibling like bond, they formed during their time in the Rocks Pirates.



Raizo won his dual with Fukurokuju when his fellow ninja veteran collapsed from dehydration courtesy of the raging flames throughout the Skull Dome. In order to save everyone from the very same flames Raizo summoned a vast amount of water with his scroll-based ability, and Jinbe uses Mizugokoro and Kairyu Ipponzeoi to hurl the water down throughout the castle to extinguish all of the fire. While he was briefly trapped under a pile of rubble, Kurozumi Orochi was beyond shocked when he discovered that the geisha "Komurasaki" he was enamored with for so long was in reality his enemy Oden's daughter, Kozuki Hiyori. Orochi tried to explain himself, but Hiyori saw though his lies as she exclaimed all her animosity toward Orochi while she informed him that every day, he sat on the throne of Wano was a day too long and he was never truly the shogun. In a final attempt to take his revenge, Orochi broke free and was caught on fire from what was left of Kazenbo, yet he still attacked Hiyori with extreme fury, but was stopped by the timely arrival of Denjiro, who sliced off Orochi's last remaining head. Denjiro then comforted Hiyori and commended her for all she had to deal with for years, as they both watched Orochi's head burn to a crisp, finally putting an end to the wretched tyrant's life.



As the battle between them intensified Kaidou was glad that he finally found a worthy opponent to fight after all these years and realized he hasn’t had this much fun since he fought Oden. Luffy who was also enjoying their fight as he utilized all of his strength and speed to combat the Emperor and having been defeated by Kaidou twice before was more determined than ever to achieve victory against this powerful enemy before him. Just then CP0 received orders to make sure Luffy lost the fight because the Five Elders knew the repercussions the end of Kaidou’s reign would have on the rest of the world. So, Guernica held Luffy in place so Kaidou could deal the finishing blow. This act actually caused what the Five Elders feared most: Luffy awakening his Devil Fruit at long last. Luffy then pressed onward in his fight against the fierce Kaidou as he began demonstrating the extraordinary power of a forgotten time. Despite all of Kaidou's powerful, unrelenting attacks, Luffy kept using his newly acquired abilities in creative and unpredictable ways until he was finally able to make his fist the size of an island and unleashed the mighty Gomu Gomu no Bajrang Gun, causing Kaidou to finally accept that Luffy was indeed Joy Boy who he foresaw would one day come to defeat him.



Kaidou fell so hard into the ground, the collision made a massive crater leading into an underground chamber filled with magma, where both Kaidou and Big Mom's unconscious bodies ended up. This event caused a volcanic eruption where Onigashima once stood, signifying both their defeat and the official end of their era as rulers of the sea.

Progress
The following is a list of status updates provided by CP0 with the help of the Mary network.

Aftermath
After several lengthy and difficult battles, against all odds, what was thought to be impossible happened; two of the Four Emperors, Kaidou and Big Mom, were defeated by three infamous pirate captains of the Worst Generation, Monkey D. Luffy, Trafalgar Law, and Eustass Kid. In the end, the raid was a total victory with Kurozumi Orochi being dethroned and deceased. Meanwhile the Beasts Pirates lost all their power in Wano Country, causing many of the Beasts Pirates to flee or be imprisoned in Udon and some of them had defected to the alliance's side during the battle either because of Chopper saving them from the biological weapon Ice Oni or because they were tamed by Tama. Also, CP0 agent Joseph retreated via Geppo so he could report to the World Government everything that happened during the battle. Kaidou's precious New Onigashima Project that he had been working on for decades was now totally in shambles with Onigashima itself having landed near the Flower Capital instead of on top of the city as Kaidou intended thanks to the power of Dr. Vegapunk's Artificial Devil Fruit and Kaidou's once mighty fortress, the Skull Dome, was now in ruins. After giving it much thought, Kozuki Momonosuke, the rightful heir of Wano, decided to postpone opening Wano's borders for the time being. With all enemy forces vanquished, Momonosuke became the new shogun and announced to his subjects that Kaidou and Orochi would no longer oppress them. After hearing this, the people of Wano rejoiced at their regained freedom.

Days later, the children of Wano received new schoolteachers who told them the true heroic tales of Kozuki Oden, shrines were planned to be built so that Oden could finally be laid to rest, along with the members of the alliance that gave their lives for the rebellion, including Shimotsuki Yasuie, Ashura Doji, and Izou. Everyone in Wano also soon learned of Komurasaki and Kyoshiro's true identities as Kozuki Hiyori and Denjiro. As Luffy asked Momonosuke to not give his name to the people of Wano due to his humility, everyone in the country came to know him as the warrior Joy Boy and heard about the tale of how he defeated Kaidou with the citizens comparing his heroism to Shimotsuki Ryuma and became forever grateful for ending his reign of terror. In addition, Big Mom is now known to the people of Wano as "O-Lin the Great Yōkai" and learned of her role in the great battle and as a result has become a legend in Wano just like Kaidou who the Wano citizens now call the "Dragon King".



Naturally, news of Kaidou and Big Mom's defeat soon spread across the seas; it was then before the banquet to celebrate the alliance's victory that Scratchmen Apoo arrived and showed those present the newspaper, which named the new Emperors of the Sea as well as an update on everyone's new bounties. It was announced to the whole world that "Straw Hat" Luffy and Buggy the "Star Clown" had replaced Big Mom and Kaidou as Emperors. Additionally, Luffy, Law, and Kid had been assigned bounties of 3,000,000,000 each. To the dismay of the Five Elders, Luffy also got a new picture in his wanted poster showing the whole world his awakened form, and the Marines did not receive the order to remove the initial D in his name. Luffy's new status as an Emperor unintentionally help increased the influence of his sworn brother Sabo of the Revolutionary Army after the notoriety he gained from the events from the recent Levely. To top it all off, every current member of the Straw Hat Pirates had their bounties greatly increased as well, indicating they were now an even bigger threat to the World Government than before.

Yamato decided to wait before joining the Straw Hats as he wanted to start his journey by exploring Wano before setting out to sea just as Oden did. Before Luffy and his crew left Wano, he gave Momonosuke a copy of his Jolly Roger so that everyone in the outside world would know that Wano was an ally of the Straw Hat Pirates. Luffy also told Momonosuke, Kin'emon and Yamato are welcome to join his crew anytime in the future.

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