CP0

CP0, more properly known as Cipher Pol "Aigis" Zero (サイファーポール"イージス"ゼロ), is the strongest intelligence agency among Cipher Pol, working directly under the World Nobles. They first appeared on Dressrosa near the bridge to Green Bit.

Due to their actions and role, they are major antagonists during the Levely Arc, the secondary antagonist group of the Wano Country Arc, the major antagonist turned reluctant ally group of the Egghead Arc, and one of the central antagonist groups throughout the second half of the series.

Overview
CP0 is the strongest of all Cipher Pol units, even surpassing the assassination specialists of CP9. It is said the when CP0 is active, world shaking events are about to occur. Much is unknown about the agents and their abilities; however, the agents of the group are shown to be masters of Rokushiki and are proficient in Haki as Lucci, Kaku, Stussy, Blueno, Kalifa, Jabra, Kumadori and Fukurou have learned Busoshoku and Kenbunshoku Haki. The agents who wear masks are among the most elite fighters of CP0, stated to be in a class of their own. They are collectively known as the Masked Assassins (仮面の殺し屋). A masked member of CP0 is easily capable of defeating even an Ancient Giant.

They work directly under the command of the World Nobles. They have strong intel over a myriad of subjects concerning the World Government, including the Artificial Devil Fruit Vegapunk created with Kaidou's Lineage Factor and X Drake's true allegiance.

Despite them being the highest ranking Cipher Pol unit, they do not have the authority to engage in a fight against one of the Four Emperors without being ordered to, leading to them requiring to contact the Marines.

Ships


CP0 is in possession of at least one battleship, which was used to transport three of the agents to Dressrosa. The ship features the words "AIGIS" and "CP0" painted on the sails alongside the World Government insignia. The organization also summoned an entire fleet of ships in their mission to take over Wano Country, but it is unknown whether all of these ships belong directly to CP0.

Dressrosa Arc


When word of Donquixote Doflamingo's supposed abdication of his throne and Warlord of the Sea position reached the citizens of Dressrosa, Doflamingo called CP0 to come and clear up the confusion. When Guernica, Joseph, and Gismonda arrived, Guernica told the people that the article printed in the newspaper was a mistake. Guernica went on to explain that a new, amended report would be released at 3 p.m. that day. Finally, Guernica asked the citizens not to discuss the rumors until the truth was released and to conduct usual activities as if nothing had happened.

Sometime after Trafalgar Law and the Straw Hat Pirates arrived at Dressrosa, the three agents walked by a northeastern café where they were seen by Law, Usopp, Nico Robin, and Caesar Clown.

Doflamingo revealed to Law that he was granted authority to command CP0 because he holds secret information about Mary Geoise's "national treasure", which will shake the world if its existence is revealed to the public.

After Doflamingo's defeat, Sabo stated that CP0 was returning to Dressrosa and they were after the revolutionaries.



Spandam, Kaku, Rob Lucci, and Hattori arrived there days later. They received a message telling them that all weapons from the underground port were taken. They suspected the Revolutionary Army to be behind the incident.

Heart of Gold
While escorting Myskina Olga, Gismonda was interrogating her about the Pure Gold. When the Treasure Pirates attacked, he tried to take Olga to safety, but his way was blocked by Mad Treasure. The two engaged in battle, which allowed Olga to escape. Treasure then knocked out Gismonda before chasing after her.

One Piece Film: Gold
Spandam came to Gran Tesoro, where he received a magnificent payment from Gild Tesoro in order to bring his forces to Gran Tesoro and help Tesoro's crew deal with the Straw Hat Pirates. Lucci reported to Sakazuki about Marine involvement in Gran Tesoro. Sakazuki was angry that they were helping a pirate, but Lucci replied that the Marines had their own motives.

The next night, as the Straw Hats and the citizens of Gran Tesoro were battling Tesoro's crew, Spandam prepared to finish Luffy off, but Rikka blocked Spandam's strike, giving Luffy enough time to free himself and punch Spandam, defeating him. Lucci and a Marine fleet attacked Gran Tesoro, intending to destroy it despite the call for help from the World Nobles on board as well as the innocent people. However, Sabo suddenly appeared and stopped the bombardment. Lucci then turned into his leopard hybrid form, and the two clashed. The two battled until Gild Tesoro's defeated body fell in between them, and Lucci took his leave from the battle.

Whole Cake Island Arc
Stussy went undercover as one of the emperors of the Underworld and attended the wedding ceremony for Charlotte Pudding and Vinsmoke Sanji.

When Du Feld attempted to steal the Tamatebako, Stussy confronted him and questioned him of his intentions. Surprised by her sudden appearance, he fell down to where the Tamatebako had fallen to earlier. As he was about to open the chest, Stussy shot him down with a Tobu Shigan. Stussy stated that the World Government would have better use of the item before telling an eavesdropping Morgans to fabricate a story with Du Feld as the culprit of its theft. Morgans begrudgingly complied but demanded to see the contents of the Tamatebako first. She agreed, but Du Feld's unconscious body knocked over the chest, sending it to the base of the Whole Cake Chateau. The Tamatebako, which held a bomb, detonated and the explosion caused the Whole Cake Chateau to collapse. As the chateau toppled, Stussy managed to avoid harm using Geppo.

As the Big Mom Pirates chased the Straw Hats throughout Totto Land, Stussy waited with Morgans near Charlotte Mont-d'Or's operating center. She then informed them about the Tamatebako being the cause of the explosion and heard their plan of vengeance, before leaving with Morgans. Aboard Morgans' balloon, she talked about Morgans' support of Monkey D. Luffy and his prediction regarding the Worst Generation.

Levely Arc


The day before the Levely began, Charlos tried to take Princess Shirahoshi as his pet. When Leo and Sai tried to save her, they were blocked by Lucci's team. When Neptune prepared to attack Charlos despite the threat of striking a World Noble, Charlos ordered Lucci to kill him. However, Donquixote Mjosgard arrived and knocked out Charlos, defusing the event, and ordered the release of Shirahoshi.

One Piece: Stampede
Rob Lucci infiltrated the Pirates Festival on Delta Island in order to retrieve the Pirate King's treasure, an Eternal Pose to Laugh Tale. After Douglas Bullet devastates the island with his ability, he reveals that he currently possesses it. When Luffy, along with Trafalgar D. Water Law, Boa Hancock, Buggy, Sabo, and Smoker challenged Bullet's colossus, Lucci was observing at a distance, even helping out once. When Bullet was finally exposed, Lucci attempted to use this opportunity to seize the treasure but he was stopped by Sanji. After Luffy got the treasure, he attempted to ambush the Straw Hat captain, however Luffy unhesitatingly destroyed the Eternal Pose right in front of his eyes, before Law used his ability to help the pirates escape. In the aftermath, Lucci was seen alongside other agents, taking a call on a Den Den Mushi.

Wano Country Arc
On the fourth day of the Levely, four commanders of the Revolutionary Army attacked the Domain of the Gods. CP0 agents watched from outside the Celestial Dragon Gate as the two admirals, Fujitora and Ryokugyu, fought the revolutionaries inside the World Nobles' residence. The agents were later inside the castle, watching over Nefertari Vivi, whom they had captured earlier, telling her they would make her "disappear" to be sold off to World Nobles alongside her father Nefertari Cobra. They were then conversing with Vivi about the events and turmoil happening during the Levely, namely Saint Charlos being assaulted by Sai and Leo and the attack of the Revolutionary Army Commanders which led to the liberation of the slaves and a subsequent clash between Ryogukyu and Fujitora due to the latter letting the slaves escape. Their conversation was then interrupted by Wapol, who panickily ran through the castle after witnessing the murder of Cobra, and who made his way through the room to the other side. The agents then noticed that Vivi had mysteriously disappeared.

With Doflamingo's defeat and arrest, the World Government was having a hard time acquiring more weapons that originated from Wano Country through their primary intermediate. As a result, Guernica, Joseph, and Maha went directly to Wano to negotiate with Shogun Kurozumi Orochi. Orochi accepted their payment in the form of warships, but informed them that if another trade were to happen, Vegapunk would be required as payment. The agents found the request to be an impossibility and in response, Orochi shot Joseph (who was not injured by any more than a simple recoil) and mocked them that he had Kaidou backing him, and therefore was not afraid of the World Nobles nor the Marines.



The three CP0 agents were later invited to Onigashima on Orochi's behalf for the Fire Festival. During the raid led by the Ninja-Pirate-Mink-Samurai Alliance, the agents lamented on Orochi's death and analyzed the state of the conflict. With the assistance of a human Mary, they used a Go board to illustrate the forces of the two sides.

Later, Guernica thought back to when Kaidou had been captured by the Marines and how Dr. Vegapunk experimented on his Lineage Factor, thus creating an artificial Devil Fruit. The World Government wanted him to give the fruit to them, but Vegapunk considered it a failure and refused, leaving it on Punk Hazard. Maha asked why he was bringing this up now since Punk Hazard was destroyed, but Guernica said that he hoped the fruit was destroyed as well despite the G-5 reporting that one facility was still operational.

Later Guernica questioned why they refused to surrender based on the defeat of Luffy. He was then informed of the current shift in fighters, including the Pleasures and Waiters turning against Queen.

When the Mary expressed her confusion after Tama activated her Kibi Kibi no Mi ability, Guernica was puzzled by her reaction, until he learned about the betrayal. The agents rearranged the Go board as the numbers on the alliance's side had risen to 9,000 while the Beasts Pirates fell to 16,000. They then started talking about ensuring Who's-Who's death, as he was a former Government agent who was imprisoned for a failure before escaping. Though Joseph considered leaving Who's-Who alone as he was not a big security threat due to having outdated information, Maha refuted this, believing his betrayal going unpunished would set a bad precedent. However, the agents did not think Who's-Who's chances of living were high as the Tobiroppo was facing the former Warlord, Jinbe.



Guernica then received a call via Den Den Mushi from Rob Lucci, who told him that the World Government was planning on annexing Wano Country under their direct control if Kaidou lost. Lucci also told him that they had direct orders on capturing Nico Robin due to the danger she posed to the world, to which the lead agent complied. Two of the agents on Onigashima left their room and pursued Robin, defeating several minks who tried to stop them. Brook then carried Robin over a ledge, and the agents chased after them to the second basement floor of Kaidou's castle. As the agents jumped down towards Robin and Brook, they were engulfed by Kurozumi Kanjuro's Kazenbo, but emerged unscathed.



When Scratchmen Apoo began photographing the agents for Morgans, Guernica stabbed him with Shigan, causing the pirate to fall to the ground. The agent then confronted X Drake and attacked him; however, Apoo, who had survived the attack, hit Guernica with his Devil Fruit powers, saving Drake. They then allied themselves against the two government agents.

However, they were no match for the agents, who easily defeated Zanki and Drake (although they pointed out he put up a good fight) while forcing Apoo and Inbi to abandon the fight and flee. Guernica then received the call from Joseph, reminding them of their mission to capture Nico Robin while also informing them of the All-Stars' defeat at the hands of the alliance. However, Joseph pointed out there were still two Emperors to defeat, but should they fall at the hand of the new generation, this would set the course for the times to come.

They would, shortly thereafter, encounter Izou on the Basement Floor and although they pointed out that they would normally not let the remnants of the Whitebeard Pirates run freely, they would return to their initial task of capturing Nico Robin and dealing with the Straw Hats. As they were already bidding goodbye to the former 16th division commander, walking past him, Izou however told them to stop. Maha got into combat with Izou causing a double knockout. After Maha's knockout, Guernica received a call from Joseph, who said that they received a direct order from the Five Elders, telling them to immediately eliminate Luffy to prevent him from defeating Kaidou. However, Guernica said that it would be impossible, even going as far as to ask why he had to interfere in the Kaidou fight, knowing the repercussion from his interference. Unbeknownst to him, Drake got up, going after him to stop him. However, Drake pierces Guernica, saying that this is his form of justice, to which Guernica replies to him that he envies his conviction before using Shigan against Drake, piercing him in the neck. Guernica made his way to the rooftop and used Tekkai to hold Luffy back, causing the Emperor to win the battle, much to Kaidou's dismay. Knowing that there would be consequences from interfering, Guernica only tipped his hat as he prepared himself to be struck by Kaidou's rage, which resulted in him being struck by his kanabo. Joseph in the castle also tipped his hat upon hearing the strike. Following Luffy's survival and rematch against Kaidou, Joseph departed from Onigashima via Geppo.

After escaping from there, Joseph contacted the Five Elders recounting details of the battle, suggesting the capture of Nico Robin, Joseph nervously nodded before being assaulted.

One Piece Film: Red
Uta organized a concert on Elegia in order to realize her dream of performing for the whole world. Both Kalifa and Blueno were present during the concert, and Rob Lucci fed updates to the Five Elders.

Egghead Arc
Lucci, Kaku, Stussy, S-Bear, and their fleet continued past Wano Country towards Egghead, under a mission by the World Government to eliminate Vegapunk and his six satellites. They were soon confronted by Luffy and his crew. Kaku tries to tell Lucci to stand down because they do not have authority to fight Luffy since he is now an Emperor. Stussy agreed to Kaku's suggestion and ordered one of the Government agents to contact the Marines Headquarter. However, Lucci has disobeyed the direct order and engaged Luffy only for him to be defeat by the new Emperor. CP0 attempted to use the Seraphim to destroy Vegapunk's lab until Stussy betrayed them and put both Rob Lucci and Kaku to sleep as well detained them with Seastone shackles.

Learning someone is using the Seraphim to kill them all, Lucci and Kaku offered a temporarily alliance with Luffy to stop a common enemy only for him and Zoro shown disgusted faces. With no other choice, Luffy and Zoro freed Lucci and Kaku to fight against the Seraphim. At some point, CP0 and the Straw Hat Pirates has defeated and detained York.

Trivia

 * The "Aigis" in "Cipher Pol Aigis Zero" may be derived from the Aegis, a mythological shield associated with Zeus and Athena shown as a short goatskin cloak. Athena's aegis is usually shown with a border of snakes and with the head of Medusa in the center. It is more an emblem of protection and power than an actual military shield.
 * The three unidentified CP agents who met Carmel wear white outfits and tribal masks, features they share with most of other CP0 agents, although they are not confirmed as agents of it.
 * Kalifa and Blueno were originally not planned to be agents of CP0, but Eiichiro Oda was convinced by the One Piece Film: Red staff to include them. However, Oda emphasized that the two do not wear masks, and are thus lower rank compared to the elite masked agents.
 * CP0 is written as "CP AISIS 0" in One Piece Volume 777.

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