MANGA · STORY NOTES

One Piece, Volume 69

Volume 69 of One Piece. It follows the adventures of Monkey D. Luffy and his crew, the Straw Hats, as he searches for the legendary treasure known as the "One Piece" to become the next King of the Pirates.

Description adapted from Wikipedia contributors, One Piece · CC BY-SA 4.0. Text adapted for this entry.

VIZ Media

FULL SPOILERS AHEAD

The story, including the ending.

These write-ups discuss major events and outcomes for this listed work. Each source and its coverage are identified below.

Complete story — includes the ending

Chapter 679
Watching the broadcast of his experiment, Caesar Clown comments that there is now no place left on Punk Hazard where anything can survive. However, he notices the lack of the G-5 Marines in front of the building and notices that he cannot see the Straw Hats, Smoker, and Law in the cage. Monet, also watching, asks Vergo's opinion, and he says that since they cannot see anyone in the cage, they must have escaped. He adds that he may have to kill Law himself because he is troublesome to let wander around. Caesar asks if they escaped, but just then, one of his subordinates enters and informs the group that the Marines and pirates have broken into the A building lobby and are moving forward. Caesar is stunned that they managed to escape and open the shutter, but his subordinate says that they are probably planning to escape through the internal exit. Chopper, seizing the opportunity, ducks out of the room and runs down the hall, saying that he found out how the drug was made and that he found a sedative. As Chopper wonders where to go, Monet seems to notice his departure but does not react.

Caesar, meanwhile, asks where his men are, and is told that most of them are in building B, getting ready to fight. Caesar hatches a plan to block the passage between buildings A and B, isolating A, then destroying the wall, letting Shinokuni in, and killing them all. Caesar's subordinate's panics, saying that some of their men are still in the building, but Caesar does not care. He also tells his subordinate to place a Den Den Mushi near the event so that he can show the brokers the effectiveness of the weapon. Vergo tells Caesar that if Smoker and Law escape, he will also be in trouble. Because of this, he plans to take out the group himself. Vergo wonders where his sword is, but Monet tells him that he is not a swordsman. Vergo, remembering this, heads out.

Inside building A, Luffy encounters the guard to building B, "Machete" Run and promptly defeats him with a Gear 2-enhanced kick. As Luffy fights his way through the guards, he notices a large metal door between buildings A and B closing. Smoker, having just arrived, notices the beeping and asks Law what it means. Law tells him that the doors are starting to close and that Caesar is looking to trap them in building A. Near the front of the building, the G-5 Marines stand in front of the Straw Hat Pirates, Kin'emon, and Brownbeard. Having no patience for this, Brook, Zoro, and Kin'emon hack their way through and are followed by the rest of the group and Vegapunk's dragon. The Marines continue their assault, but Zoro attacks back, only to be blocked by Tashigi. Tashigi tells the Marines that this is not the time to fight, and that they should focus on getting to the next building. Seeing the door starting to close, the Marines pick up the pace, carrying the wounded as they go. Caesar's troops notice Brownbeard carrying the Straw Hats and wonder if he betrayed them as everyone rushes to escape the building.

Outside the lab, a cannon is fired that blows apart the wall of building A, allowing the poisonous gas to seep in. The Straw Hats barely escape with their lives, and Tashigi is thrown in by her own troops. Tashigi tries to run back, but the gate is already closing, leaving some Marines petrified by the gas. However, these Marines pose in stances encouraging their allies to keep going. Caesar, seeing that they have survived, states that he will not let anyone escape.

Chapter 680
The Straw Hats and Kin'emon are all escaping on Brownbeard, who is complaining about having to carry all of them, saying they should run unless they are injured. The riders give petty excuses as to why they cannot run, and Brownbeard does not believe any of them.

Close behind them, Tashigi is still saddened by the loss of some of her troops and in shock about how all the activity going on under the Marines' noses, but a soldier tells her they have to keep moving and she agrees. The soldiers next notices something coming from the roof. They then turn and run as the dragon that came in with the pirates breathes a large amount of fire down on them. The soldiers wonder what it is, and Tashigi tells them she heard rumors about there being dragons on Punk Hazard. She explains that Vegapunk made the dragons artificially to serve as guards of the facility. The dragon darts from wall to wall, descending on the Marines and dodging their bullets. It opens its jaws right in front of one of the soldiers who dives for cover at the last second, sending the dragon's head into the pipes on the wall. The dragon then turns its head around to show it eating the metal from the pipes. The Marines are terrified by the hostile reptile and continue to run towards building B. The dragon then buzzes low over them before continuing ahead of them. A soldier comments that it looked panicked and concludes that something is going on in front of them.

The Marines in front of Tashigi start cheering, saying reinforcements have arrived. Vergo has entered the passage from the other side. The soldiers are overjoyed to see their commanding officer, and ask if headquarters was informed of the situation and about the size of the reinforcement party. Tashigi is the only one not celebrating. Tashigi can barely make enough sound to tell them to run before multiple soldiers fall in front of Vergo. As a Marine falls over, Vergo's index finger is shown with fresh blood dripping from it. A soldier asks Vergo why he is attacking, saying that even as a form of punishment, using Shigan will kill them.

Tashigi remembers when she and Smoker were first transferred to the G-5 base. Vergo was telling them how the soldiers are rowdy and not too bright, but were overall good people. In between flashes of Vergo taking out more troops, Tashigi remembers a soldier telling her about how Vergo sometimes leaves suddenly to go home and care for his sick sister. She also remembers talking to him about a kidnapping case where Vergo told her it was a false claim, and that the parents were in denial and overreacting about the death of their child, saying that the idea of kidnapping gives them hope that their child is still alive, saying Tashigi would understand when she became a parent. Back to the present, Tashigi charges at Vergo with her sword. Vergo blocks the sword with his arm and then grabs her by the head. He then delivers a devastating close range punch that knocks her to the ground and almost unconscious. A soldier yells at Vergo, calling him an impostor, saying the real Vice Admiral Vergo would never do this. The remaining soldiers all gang up and attack Vergo, but Vergo annihilates all of them so he is the only one left standing. Tashigi, in her mind, prays for Smoker's help. Vergo then hears someone and a person is seen bounding around the corridor. Before Vergo can react, Sanji delivers a flaming kick to Vergo's head. The soldiers that are still conscious are surprised to see one of the pirates. Sanji said he heard the sound of a woman in trouble and came to help.

Back with Brownbeard and his passengers, Usopp asks why Sanji left so suddenly. Zoro tells him he felt an unfamiliar presence. Brook and Kin'emon look up and see the dragon from earlier. Nami notes that it looks different, something about its eyes are strange. Brownbeard exclaims that the sedatives have worn off and it is no longer docile.

The scene changes to Luffy and Smoker who are heading to Caesar's lab, taking the shortest route. Inside the lab, Caesar is watching the events unfold, irritated that Vergo took out his test subjects. He orders Monet to block the passage B gate and let the gas in. She tells him that Vergo is still there. Clown says he does not care. Smoker and Luffy arrive at the door to the lab, Luffy out of breath from running. They both tell each other not to interfere. Luffy is fighting Caesar, and Smoker is fighting Vergo. Smoker rings the doorbell, and the door opens, revealing only Caesar in the lab. Luffy delivers a blindingly fast and powerful punch to Caesar's stomach, saying he will not get away this time.

Chapter 681
As Caesar reels from the punch, Smoker remembers that before Law freed him, he ordered Smoker not to touch Caesar since he still has his heart. Smoker leaves to go find Vergo. As Luffy begins the second round of their battle, Caesar demands to know why Luffy is trying to capture him which he explains is part of Law's plan. Caesar admonishes him, warning Law cannot be trusted but Luffy retorts that's for him to decide. The two fight with Luffy landing a few solid hits. Caesar tries to suck the oxygen out of him but Luffy manages to get out of range of the powers and attack from a distance. Caesar reveals he has other methods of attack such as a flaming sword. Luffy manages to avoid him and prepares to finish him with a Jet Gatling. However Monet uses some kind of power to make a wall and protect Caesar. On her suggestion, Caesar abandons the battle and leaves to try to locate Law, though promises he has a way to make guinea pigs out of Luffy and his friends. Luffy tries to go after him but Monet gets in his way, claiming "Joker"(Doflamingo) will kill her if something happens to Caesar prompting Luffy to question Doflamigo's motivations.

At the passage connecting A and B buildings, Sanji and Vergo begin fighting, with Sanji landing a "Flange Strike" sending Vergo hurtling into a wall. Seemingly unfazed by the kick Vergo prepares for a counter, and Sanji remarks on Vergo "hardening like steel". Vergo attacks with one of Vergo's left kicks fracturing Sanji's right leg while Sanji blocks. Vergo attacks with another left kick as Sanji narrowly ducks avoiding the blow. As the two continue, Sanji yells for the Marines to run away to the B Building as the room begins to go into lockdown and the gas is let in from the A Building.

An emergency broadcast is heard from the D Building that Law has invaded the SAD production room much to the dismay of Caesar and Vergo, with the latter stating this was what Law was after ever since he became a Shichibukai and that whatever he is planning will make a mess of the New World.

Chapter 682
Law walks into the SAD production room, looks up at the giant tank, and smiles. Meanwhile, the Marines are crushed that the shutter closed, trapping Sanji and Vergo in with the gas. Someone tries to make an announcement about Law over the PA system, but the Marines are distracted as Sanji has appeared above them carrying two unconscious Marine soldiers. Sanji is happy to see Tashigi and tells the other soldiers to shut up, saying he only likes it when girls cheer for him. He takes a step and winces in pain. A Marine asks if he hurt his leg, and Sanji tells him he only takes sympathy from women, but realizes it could have been worse if he had continued fighting Vergo. Sanji asks what happened to Vergo, as he suddenly took off. The Marines say that the man Sanji fought was an impostor and the real Vergo would never do something like that. They look to Tashigi for confirmation, and she gives an empty agreement.

Vergo is inside block B, moving quickly using Geppo. He is talking on a baby Den Den Mushi with someone, telling him that Law is after the SAD and how he has betrayed them. The person on the other end laughs, and the scene changes to Dressrosa, where Donquixote Doflamingo is laughing, saying that he thought of Law as a little brother and watched over him, calling the whole thing a shame. Doflamingo continues the conversation as a nearby window is destroyed. An angry and visibly upset woman is suddenly in front of him, her left arm a cannon that she is pointing at the Shichibukai. Doflamingo takes no notice and tells Vergo that the first thing he would do if he was Law, would be to destroy the SAD production room. An explosion then occurs, completely enveloping Doflamingo. He is seen lying in the rubble, his legs straight up in the air, still talking to Vergo as if nothing happened, saying that he would kill Caesar Clown, the man Law and the Straw Hats want to kidnap. This irritates the woman, who attacks Doflamingo with a scythe from her right arm as he dodges by leaning to the left and mentions that Caesar is the only one in the world who knows how to produce SAD. A man in a top hat and leather mask sitting nearby pulls out a pistol and casually shoots the woman who is trying to assault Doflamingo, who goes on to say that killing Caesar would be detrimental. A rotund, bearded man, wearing sunglasses and a unitard leans over the injured woman, whom he addresses as Baby 5, saying that slaughter that piece of scum where he stands. She angrily says that she will not forgive him this time and Doflamingo mentions that a series of misfortunes will occur. An old woman playing cards nearby asks Doflamingo what he will do about Law. The old man she is playing with says the choice should be obvious, as Law has turned traitor. Doflamingo orders Vergo to kill Law, with absolutely no mercy to the point that Law will wish he was never born. He then leans back slightly to dodge an axe from Baby 5. Vergo asks if he should take a photo of Law's body with the camera he bought in Dressrosa. Doflamingo tells him he never bought a camera, and Vergo says he will just cut off an ear as Doflamingo stops Baby 5 with his ability. Doflamingo then addresses Caesar and Monet. He warns them to watch out for Luffy, saying he has Supreme King Haki and his potential might be greater than Law's. He goes on to say that he has a woman with him who is just a little too hot-blooded at the moment, and he is sending Baby 5 and Buffalo over to help them. When their business is finished, they will all return to Dressrosa.

Back in block B, Kin'emon and most of the Straw Hats are riding Brownbeard. Zoro comments how the little dragon is a lot more troublesome than the bigger one he fought earlier. Brownbeard panics, saying that since the whole area is on fire, the tanks full of hazardous chemicals could explode, which would destroy the walls and let the deadly gas in. Kin'emon becomes empowered, saying he cannot allow that dragon to exist. Brook then says that he will kill it, saying he cannot forgive the creature, no matter what. He remembered when the dragon was about to bite him, but then turned away looking disappointed. Usopp tells Brook there is no part of him the dragon could eat. Brook angrily fires back that bones have nutritional value too. Brook and Kin'emon then get into an argument over who will kill the dragon. While they are arguing, Nami is waving her hands, praying for the dragon to "fall for it". Brownbeard asks what she is doing, and Nami tells him she is doing a samurai impression, but Usopp corrects her saying she means ninja. The dragon flies in between three clouds and gets electrocuted in Nami's Thunder Trap. Kin'emon is surprised that the "breast band lady" can use ninjutsu, much to Nami's annoyance. Usopp then uses Green Star Rafflesia, causing the dragon to crash into it and be momentarily stunned. Robin then uses Quarento Fleur: Quatro Mano Hold to clip the dragon's wings. Kin'emon is surprised that the tengu (Usopp) and the escort (Robin) can also use ninjutsu, confusing all of their weapons and abilities for ninja techniques. As the dragon falls, it unleashes a breath of fire down on the group. Kin'emon jumps in front of Brook, calling him Sir Corpse, and cuts the flames with his sword. Brook and Kin'emon then use Gavotte Bond en Avant and Flaming Slash, respectively, at the same time on the dragon, effectively defeating it. Brook was then momentarily bothered by being called a corpse before remembering he is one. Everyone celebrates their victory as Brook and Kin'emon continue to stomp on the unconscious dragon. Brook then asks Kin'emon why he hates dragons, saying the samurai acted almost as if it were an act of revenge. Kin'emon tells him that revenge is pretty close. They then run after Brownbeard, realizing they were left behind. Nami then points up to a balcony above them. They see Chopper in Monster Point, fending off the giant children.

Nearby, in the second floor checkup room, a guard in a hazmat suit says a little girl is ok to go back to Biscuits Room and have her candy. She then asks where "that other kid" went, confusing the two men in the room. She says that a kid named Momonosuke went into the forbidden secret room and turned into a small dragon.

Chapter 683
In the research room, the guard is shocked when hearing that a kid turned into a dragon and asks the little girl where she saw it and she says she peeked into the Secret Room and kept it to herself and is now worried for Momonosuke. The guard lies saying he is fine and that she does not need to worry about him and that he is eating and tells the little girl she must not tell anyone else what she saw.

In Caesar's lab, Luffy asks what Monet is doing and Monet makes a ten layer snow hut. Monet passes through the snow huts to see Luffy and asks how does it feel that ten layers of snow huts can not be easily broken. Luffy just says she is stalling for time and he will just break it in a jiffy and tells her to stop wasting his time. He says she can not beat him and she agrees stating she could not achieve victory in a fight with him, but tells him to not confuse victory with fighting ability. She then hugs him with her wings and Luffy notes how cold she is and her body are like ice and tells her to get off. Monet refuses stating he can no longer escape her hold and the coldness will sap away his strength and Luffy begins to become drowsy. She then points out that there is a bunch of snow build up around them and Luffy should lose consciousness soon and asks if it feels good. She tells him to just close his eyes slowly and relax, but Luffy manages to fight it off and use a Jet Spear to break free by breaking the ground. As Luffy begins to laugh, he ends up falling down below from destroying the floor. Monet comments on his hidden potential and tells him that falling from their location will have him end up in the ducts and into the garbage can deep inside the earth. She adds that unless he can fly, he will not ever get out and just comments to herself about how he just dug his own grave and says her farewells to him.

In front of the Biscuits Room, Chopper in his Monster Point continues to hold off the children, telling them that he knows it is painful but they must endure it and not take any more candy knowing they want to go home. He tells them he will not let them get into the Biscuits Room. He is holding a kid and accidentally hurts him and Chopper apologizes as he did not mean to hurt him, only for the other children to attack violently around Chopper with pipes calling him a monster and state this has nothing to do with him and wants the candy stating it is theirs. Chopper tells himself it is no use stating unless he fights back he can not stop them. As Chopper falls over the kids note an opening and run to the Biscuits Room and Chopper tries to stop them only for the Rumble Ball to wear off and him turn back to normal. They all rush to the room with the intent to get candy and start trampling Chopper and he can not move and luckily is saved by Nami as the other Straw Hats and Kin'emon arrive as Nami and Usopp ask what is happening while Kin'emon shouts out his son's name. Chopper starts tearing up glad they came stating that Caesar is trying to make them into big violent fighters and he can not lay a finger on them and says they have to find a way to stop them. As they make their way to the Biscuits Room, Robin uses her Mil Fleur: Gigantes Mano and makes giant hands to stop the children. Chopper then tells Nami about the girl Mocha trying to help him and says she is in danger and is protecting the candy in the room now. Usopp notes this is bad and they will not stop at nothing to get that candy now.

The kids say the hands are annoying and start attacking and biting Robin's hands, causing her to let go stating they are so violent and she can not stop them. The kids see Mocha and tell her to hand over the candy. Mocha, having regained her sanity, tells them to not eat it saying it is evil candy telling them to snap out of it that Chopper is trying to help them. She states if they do not listen they will not be able to go home and Chopper says it is useless and tells her to run. She starts running and the kids tell her to not eat the candy on her own and then she sees the exit closed with Monet in the front and asks her to help. Monet tells Mocha she can not keep the candy all to herself and should share with the rest. As Zoro notices her he asks who she is and Usopp points out she is the bird woman he saw before.

In the SAD Production room, Law is seen bleeding and breathing heavily fighting Vergo. He uses Shambles to get his heart back and at the moment he does Vergo appears in front of him and delivers a powerful kick to the face and sends Law back to the iron bars behind him and he spits out blood. Vergo catches Law's heart and starts squeezing it causing Law to scream out in pain. Law manages to stand up with difficulty and Vergo hardens his arm and starts brutally punching Law over and over again causing Law's hat to fly off and Law manages to grab Vergo and use Counter Shock on him sending a large electrical surge in his body, but the attack did little damage. Vergo easily recovers and delivers' Joker's message of "what a shame" to Law and Law just smirks back at Vergo as he had calculated how to retrieve his heart back from Caesar and that Vergo is his only miscalculation. Vergo says Law should call him Vergo-san and retorts to squeezing Law's heart even tighter, causing Law to scream in agony as Vergo tortures him. Vergo then mentions how he is in the middle of something and 'he' just had to show up, referring to Smoker who just arrived, and says it does not matter what it takes, he plans to seal Smoker's lips permanently. As Law seems to have lost consciousness, Smoker responds that it'd be better to end things quickly to dispose of trash looking down on him and calls Vergo pirate Vergo. The two then prepare to fight.

Chapter 684
Smoker asks Vergo why the room they are in feels so eerie. Vergo tells him not to worry about it. Smoker tells Vergo he is not looking forward to telling the troops about their commanding officer's betrayal, since Vergo is deeply admired by his subordinates. Vergo tells Smoker he will not have to worry about his men. Smoker, angered by this, attacks Vergo with his jitte, asking what he did to the soldiers. Vergo blocks this attack with his bamboo cane. Vergo then teases Smoker for having compassion toward his subordinates, but tells him that since the truth is out, Smoker will have to die. Vergo's cane expands in the middle, and something shoots out of it like a blowgun. The shot causes a huge explosion. Smoker avoided the attack by becoming intangible and tries to attack Vergo from behind. Vergo leans back and narrowly avoids getting hit. He then tries to kick Smoker, but Smoker blocks it with his foot. He swings his cane but Smoker dodges it and moves around to Vergo's exposed side. Smoker then lands a devastating punch to Vergo's face, sending the vice admiral flying back and landing in a heap. Smoker tells Vergo that his tenure with the troops does not matter, because as base captain, Smoker is in charge of them when they leave the base, and challenges Vergo to try and harm any more of his troops.

In building B, Sanji and Tashigi are rushing through, having just gotten to the area the dragon set ablaze. Tashigi is confused by Sanji's behavior and desire to protect her, since they are supposed to be enemies. Sanji tells her that pirates are free spirits open to everyone. As the Marines are complimenting him for stopping the "fake" Vergo, one of the tanks in the room explodes, damaging the wall, and making a hole to allow Shinokuni in. Another tank explodes on the other side of the room, causing the same result. The injured soldiers, as well as the soldiers carrying them, fall victim to the gas. Tashigi can not believe that it would happen in a room as spacious as the one they are in. Sanji tells her to run as he runs toward the gas. She tries to argue, but Sanji just tells her to go.

In a secret room on the second floor of section R, Caesar is watching these events on a monitor, pleased that the dragon's rampage let the gas in, and satisfied that his demonstration will be a success. He tells a subordinate to close the gates to sections C and D. When asked by a subordinate about section R, Caesar tells him the plan is to lead the pirates and soldiers into the corridor and then flood it with gas from C and D, leaving them with nowhere to run. He goes on to say how he does not like the room he is in, but he really had no choice in the matter. There is a huge group of subordinates in front of him, and they ask why he is in Vegapunk's old room, considering the grudge he has against him. One of the subordinates says that Vegapunk is just as much an enemy as the ones outside, since he caused the incident four years ago. Caesar tells them they are vital to his forces and does not want any collateral damage, causing all of them to become emotional. He then goes over his plan. Once the shutters to sections C and D are closed, all areas will be closed off, leaving section R the only possible path. That way, all his enemies will be in the same place at once. The ventilation shaft in that room is connected to the outside, so letting the gas in will be easy, and will leave them with nowhere to run. Their deaths will then be broadcasted to the brokers. One of his subordinates asks if Caesar created the gas, since it looks exactly like the gas from Vegapunk's failed experiment four years ago. Caesar begins to shed tears, saying the war going on in science makes his heart ache. He tells them that he tried to stop Vegapunk from doing the experiment, since it would be dangerous for the people on the island. The accident happened anyway, and Vegapunk is still haled as the best scientist in the world. He asks if it is right for someone who caused so much pain to hold that title. His subordinates are deeply moved. Caesar tells them that he made the gas against his better judgment to prove that he is the best scientist in the world. He ends his diatribe by saying that once he is acknowledged by the Marines, he will be able to use his scientific genius for the good of the world. Moved by his emotional speech, his subordinates begin to cheer.

Caesar giggles as he flashes back to what really happened on that day four years ago. He was being ordered to cease the experiment, since it would be bad for the people on the island, contradicting what he told his subordinates. Caesar snaps back, saying he is trying to make ways to kill pirates, but the Marines argue that they cannot hurt innocent civilians. Caesar laughs, calling them a necessary sacrifice, saying world peace is the calm that comes after the storm. He then calls Sengoku too soft, and reasoned that Akainu would want his weapon. He then laughs, saying he heard Vegapunk's human enlargement experiment failed again. He tells the Marines that the only way to do it is to kidnap children who are still growing and put them through various treatments. Later, he is yelling at Vegapunk, asking him what he is doing. Vegapunk tells him that they are relieving Caesar of his post in the research team. His actions have become too reckless. Caesar yells not to mess with him, and slams a button on a console, causing the lab to explode in a huge mushroom cloud.

The gates connecting area B to areas C and D have now been shut. In the basement, Luffy asks something if it just spoke. Luffy is staring at a dragon and asks what it is. The dragon responds by asking Luffy who he is.

Chapter 685
In the scrap heap beneath C Building, the small dragon introduces himself to Luffy as Momonosuke. Luffy thinks that he has heard the name before, but Momonosuke yells at him for drooling. Momonosuke continues, stating that he is not food and would rather eat than be eaten. Luffy grabs Momonosuke's horns, looking for a person stuck to his neck communicating by farts, but soon realizes that Momonosuke (which Luffy thinks is an eel) is the one talking. Momonosuke chides Luffy for drooling, but his own stomach then rumbles. Luffy says that Momonosuke is just as hungry as he is, but the dragon says that a warrior does not go hungry from just ten days without food. Luffy is stunned that he has been without food for ten days, and when Momonosuke asks his name, Luffy introduces himself and says that he is going to be the next Pirate King. Momonosuke is surprised, as he had thought that pirates were hulking brutes, unlike Luffy. Momonosuke remarks that Luffy is also an outsider, and says that the facility is for diseased children.

Momonosuke says that he does not know much about the island, and arrived merely when he sneaked onto a boat. Momonosuke says that even though he distanced himself from the other children, they were nice to him, offering him candy. The children met Caesar Clown, and when asked his name, Momonosuke refused to give one. After declining candy for some time, he managed to escape, hungry and exhausted. He found a Devil Fruit and ate it, but was caught by one of the children. She tells him that they are not allowed to be in that room, but Momonosuke says that he needs to escape the facility. The girl says that they all want to go home, but that being in the Biscuit Room is not all bad. Suddenly, some of Caesar's men arrive, and the girl runs away. Momonosuke, however, transforms into a dragon before their eyes and to his confusion. He manages to escape, and after he is gone, the soldiers remark that the fruit that Momonosuke ate was Vegapunk's failed artificial Devil Fruit.

To wrap up his story, Momonosuke tells Luffy that he is human. Luffy says that he ate a Devil Fruit, and asks Momonosuke why he does not simply transform back into a human. Momonosuke is surprised that he can turn back, and asks Luffy how to do so. Luffy brushes off this question, saying that he is not a Zoan, and remarks that the hole he fell through is a long way away. Momonosuke says that he also wants to leave since he overheard Caesar saying that all of the children will be dead in five years if the experiment continues. Momonosuke continues, saying that he would have warned the children but instead fell into the hole, trapping himself. This infuriates Luffy, who says that he is going to climb the walls along with Momonosuke. The dragon is relieved, but Luffy tells him to get a hold of himself. This makes Momonosuke see a hallucination of Donquixote Doflamingo. This scares the dragon so much that he starts to fly, with Luffy hanging on to him.

Meanwhile, in B Building, Usopp, Brook, and Kin'emon have broken off from the rest of the group to look for Seastone handcuffs at Robin's request. Brook uses his Yomi Yomi no Mi abilities to look behind walls. Usopp is worried about Nami and the rest of the group because he is not there to protect them. However he feels that they will be fine because Zoro is with them. In the SAD production room in D Building, Law looks on while Smoker and Vergo clash. In B Building, Tashigi and the G-5 Marines are fleeing the poisonous gas with help from Sanji, who is kicking them along.

On the third floor of Building B, Monet has created a blizzard with her Devil Fruit abilities while Mocha tries to escape from the kids who want their candy. Robin tries to help, but is stabbed by Monet. Zoro steps in, saying that he will handle the enemy because she is a Logia user. As of now, there are twenty minutes left until the gas fills B Building completely.

Chapter 686
In the Biscuit Room on the third floor of the lab on Punk Hazard, Zoro and Monet are fighting. Chopper and Nami ask Robin, who had been attacked by Monet, if she is okay. Robin says that she is fine, and that the children need to be stopped. Chopper tells Nami to hurry, as the children are leaving and he had promised Mocha that he would protect her.

Mocha tries to run, but the rest of the children pursue her, shouting for the candy. She yells that Chopper told her what type of candy she has, and why they cannot be eaten. As she runs, she remembers meeting Sind, who said that they would be better within a year. She also remembers meeting Caesar Clown, who had told her that he had lost a son to a disease and did not want it to happen to anyone else. Caesar had then introduced her to Uzu, Doran, and Konbu, all of whom were nice to her. Monet had given them candy and introduced them to more children, making Mocha realize that even her acting was a lie.

Back in the Biscuit Room, Chopper, Robin, and Nami start to leave when Zoro charges after them. The three are surprised, but Zoro then blocks Monet's attack aimed at Nami. Zoro berates his opponent for going after unarmed targets, but Nami creates a Heat Ball and strikes Monet's wing, inflicting damage. Nami turns to run, but Monet dives into the snow and creates a Snow Fence with her Devil Fruit powers. Monet then uses snow to surround Nami, weakening her. Monet then appears as a snow monster and tries to attack Chopper, but Nami moves him out of the way. Robin forces Monet away with a Quatro Mano: Spank, and Monet reforms, saying that the children are important test subjects she must protect. She continues, asking which one of them coerced the children into rebelling, to which Chopper responds by saying that they left by free will. Zoro slashes a hole in the wall and orders them to leave, so Nami, Chopper, and Robin head out after the children. Monet tells Zoro that it is typical of pirates to steal the fruits of their labor before attacking Zoro with her wings. Monet comments that Zoro has done nothing but block since the beginning of the fight, and that this means that she might be able to win.

Just then, the G-5 Marines, led by Sanji run in, making Monet angry that they are trying to steal the children. Zoro tells the group to head after Robin, Nami, and Chopper, but Sanji notices Monet and falls over. The Marines begin to compliment Monet, who blushes but then attacks and bites one of the Marines. The Marines fire, but as a Logia user, she is unaffected. Tashigi then appears and slashes Monet's wing. Monet retreats, commenting on Tashigi's Haki as the Marines cheer. Tashigi tells the Marines to go ahead, saying that she is needed to fight Monet.

Chapter 687
Sanji assures the G-5 men that, while he will not hurt women, Zoro is an entirely different story, and that Tashigi and he will be fine as they continue to look for the kids. This boosts the Marines' morale that they will get praised by Tashigi, Nami, and Robin if they accomplish their goal.

Meanwhile, Zoro gets mad at Tashigi, claiming that she is getting in his way but Tashigi claims that, in addition to keep Monet from going after her subordinates, she is staying behind because Zoro will not cut a woman basing her assertion on their first duel back in Loguetown. Zoro denies it but claims since Tashigi wants to fight Monet, sits down and permits Tashigi to have the battle. Thinking she assumed Zoro's "weakness", Monet becomes conceited and attacks Tashigi with a barrage of snow attacks. She eventually manages to wound Tashigi with a bite to the shoulder. However, Tashigi endures it because she knows she will lose her arm if she pulls back.

Just when Monet is about to finish her, Zoro cuts Monet on the cheek with Armament Haki, causing her to let go of Tashigi. He is chiding Tashigi for being too slow as he approaches Monet menacingly. Admitting that there are things he would rather not cut, he then asks if she has ever met a wild animal that is guaranteed not to bite. Monet realizes he actually is going to attack her but is paralyzed with fear because of this. Zoro cuts her in half but does not use Haki, thus she survives thanks to her Logia intangibility. He then asks if the two women are satisfied. However, Monet is still too terrified to pull herself back together properly. One half of Monet's body manages to get up and attempts to stab Zoro in the back. Tashigi then intervenes and finishes her off, finally defeating the snow harpy.

Chapter 688
The gas begins to seep in and, due to her wounds, Zoro is forced to carry Tashigi to catch up with the others, to which Tashigi is outraged at. She then tells Zoro to let her off when they reach her subordinates. However, she is distracted by Zoro's sword, Shusui, and gets excited at seeing it, but Zoro is annoyed at it and tells her to stop it.

Meanwhile, Chopper, Nami, and Robin are doing their best to keep the berserk children from catching up to Mocha by having Chopper sedate them one at a time. Despite their efforts, Mocha finds herself cornered by a group of children who managed to get around the Straw Hat Pirates and the children attempt to forcibly get the candy from Mocha. Having no choice, Mocha puts the entire batch of candy in her mouth. Despite Chopper's pleas, she swallows the entire contents. The story goes into a flashback a few moments earlier as Chopper and Mocha were trying to barricade the door to the Biscuits Room.

Chopper explains to Mocha of Caesar's deception and using the kids for his experiments and how if Caesar continues to use them, the children will die before they reach adulthood. Mocha remembers her friends promising to each other that when they get older, they will reunite and go on an adventure. The gravity of the situation becomes clear to Mocha, but Chopper promises that he and the rest of the Straw Hat Pirates will save her. Mocha vows not to let any of the kids get the candy and runs off to guard the room just as the children burst in. Back in the present, Mocha begins coughing up blood due to the serious overdose of the drug. The other children stop upon seeing her condition and are unsure what to do now. As Chopper, Nami and Robin rush to Mocha, Sanji and the G-5 Marines finally arrive and begin subduing and sedating the kids. The Marines have Mocha moved to an examination room, to which Chopper is grateful for, complimenting Mocha on her bravery and hoping that he can save her.

Meanwhile, Luffy and Momonosuke emerge from a garbage chute in front of some of Caesar's men, with Momonosuke passed out and now being carried by Luffy. Luffy grabs one of the guards and demands to know where Caesar is. The guard tells Luffy that Caesar is in Building R, to which Luffy immediately sets off for Caesar's location.

Chapter 689
Brownbeard is shown on the first floor of Building R, screaming at the door stating that he will tell his men Caesar's true colors. Caesar decides to go down to the first floor in order to deal with him. Brownbeard asks Caesar to give him back his men, as Caesar asks what is wrong. A flashback occurs, showing that Caesar left Brownbeard's men to die outside. Caesar states he has no idea where they are. Caesar's men begin to question Brownbeard about what he is doing, so he then reveals to them that Caesar called them guinea pigs for his experiment. However, before he is able to do this, Caesar injects him with a muscle relaxant, preventing Brownbeard from moving and properly pronouncing "guinea pig", confusing the subordinates. Caesar then quietly reveals to Brownbeard that he abandoned his men outside, and that he, their savior, was the one who caused the explosion that almost paralyzed everyone four years ago. Brownbeard then attempts to attack Caesar, but Caesar dodges and orders his men to shoot him.

Luffy suddenly enters the room and grazes Caesar with an Elephant Gun. Luffy then stands in front of Brownbeard in order to protect him, and remembers the kind words Brownbeard said about Caesar before. Caesar then orders his men to go back to the second floor to begin the preparations, and Momonosuke recognizes Caesar as the one who experimented on the children. Luffy then asks Caesar what Punk Hazard really is, and Caesar reveals it to be the home of the scientific underworld, where experiments take place, people die, and nobody is any the wiser. He tells Luffy that he knows nothing of the island and explains to him how meaningless everything he has done so far has been, and reveals that the SAD is actually used by Doflamingo to make artificial Zoan Devil Fruits called Smiles. He tells Luffy that he heard that one of the Four Emperors was using these fruits in order to build a mighty crew. Caesar then tells Luffy that he is protected by these strong people like Doflamingo, and that a person of his level will not be able to take them on at all. Then, out of anger, Luffy punches Caesar, telling him that he has taken on guys like that many times.

Chapter 690
Luffy continues his fight with Caesar Clown after punching him and leaving a deep imprint on his face. Caesar then tries again to flaunt his protection under Doflamingo in order to intimidate Luffy, and immediately attacks Luffy with an attack called Gastille which is recognized by one of the subordinates who states that it is capable of melting steel, but Luffy dodges it and delivers another punch to Caesar's face.

With five minutes left until Shinokuni fills up building B, the rest of the Straw Hats, as well as their allies, are hurrying toward building R, where the escape route off the island is located. Sanji, Nami and Robin as well as the G-5 marines and the now sober children are rushing together towards Building R. Zoro and Tashigi are far behind because of Zoro's bad sense of direction. Only Kin'emon and Brook are going the opposite direction towards the gas because Kin'emon had heard that his son had got turned into a dragon and immediately thought that dragon he slew was his son. Brook tries to stop him but gets dragged along instead. Usopp is the first to arrive in Building R while searching for seastone hand cuffs but ends up in the secret room above the first floor, where the gas trap was prepared.

In the SAD room, Vergo was berating Smoker for using his smoke form against him who is more than capable of handling devil fruit users, and uses his Haki imbued Bamboo stick to injure Smoker, destroying his jitte. However, Smoker was really just distracting Vergo in order to allow Law to regain his heart. With Trafalgar Law's heart back where it belongs, Law is ready to finish his fight. Smoker, who was barely conscious tells Law to finish it quick because it shames him to be indebted to a pirate. Law then calls out to "Joker" who was monitoring the battle with a Den-Den Mushi, and tells him that once Vergo is defeated and Caesar captured, all the SAD at his disposal will be gone and he will lose his position as king of the underground. Doflamingo then laughs, replying that Law's fear of Vergo when he becomes very angry is still there, and that his Haki protects his whole body so that not even Law's power can hope to cut him. Law then proves Doflamingo wrong by cutting a Haki-armored Vergo in half, along with the SAD chamber and the mountain it was built in. Law then states that Whitebeard only ended the last era and that the marines never challenged any of the big name pirates recently because they were preparing a new battle force and that the war at Marineford was really just a prelude to something else. Law continues by saying that, like Doflamingo had said, a new unstoppable wave always marks the beginning of a "new era of great ones", and that he had broken the gears of the cycle so no one, not even Doflamingo can turn them back.
Sources and content license

Source and revision history ↗ · Adapted from One Piece Wiki contributors. Complete listed chapter synopses combined; illustrations and reference markup removed. Sources and revision history: https://onepiece.fandom.com/wiki/Chapter_679?oldid=2036902; https://onepiece.fandom.com/wiki/Chapter_680?oldid=2101512; https://onepiece.fandom.com/wiki/Chapter_681?oldid=1947484; https://onepiece.fandom.com/wiki/Chapter_682?oldid=2101513; https://onepiece.fandom.com/wiki/Chapter_683?oldid=2085966; https://onepiece.fandom.com/wiki/Chapter_684?oldid=2018428; https://onepiece.fandom.com/wiki/Chapter_685?oldid=2018429; https://onepiece.fandom.com/wiki/Chapter_686?oldid=1947489; https://onepiece.fandom.com/wiki/Chapter_687?oldid=2101514; https://onepiece.fandom.com/wiki/Chapter_688?oldid=2018430; https://onepiece.fandom.com/wiki/Chapter_689?oldid=2021281; https://onepiece.fandom.com/wiki/Chapter_690?oldid=2036497 · Content license