Summary:
The Vinsmoke family goes to fight Oven’s army on Cocoa Island and sees Sanji and Luffy gone, and Brûlée reveals to his crew that Luffy has defeated Katakuri. Despite the army’s relentless efforts to avenge Katakuri, Sanji and Luffy eventually manage to get off the island and fly towards the waiting Sunny.
With Ichiji, Niji, Yonji and Reiju between them and their targets Sanji and Luffy, the Big Mom Pirates open fire on the Vinsmoke siblings. However, the bullets bounce off them harmlessly and Ichiji tells Sanji to take Luffy off the island, with the Vinsmokes claiming the Big Mom Pirates as their prey. Oven wonders how they are here after hearing they were defeated by Nusstorte’s army. The Vinsmokes reveal that they defeated the army and threw them all into the water, stunning Oven’s army, as well as Mont-d’Or and Niwatori, who overheard the exchange over Den Den Mushi. The latter two begin to panic, wondering who called them to falsely declare their victory over Germa, and unsuccessfully attempt to contact Nusstorte’s army.
Spurred on by his siblings, Sanji breaks away towards the coast with Luffy and uses Sky Walk to launch himself into the air. Some of the Charlotte Decuplets fire torpedoes at them, but Ichiji, Niji, and Yonji combine their power to destroy the projectiles. The Tartes surrounding Cacao Island find themselves under attack by the Judge and the Germa Kingdom fleet, and the pirates aboard the Smoothie wonder if they should go help them. However, Smoothie sticks to the pursuit of the Thousand Sunny and Daifuku joins her crew. On Sunny, Nami asks if the Germa are their allies or enemies, and the crew is contacted by Sanji. Since the crew can’t get any closer to Cacao Island, Sanji is tasked with staying in port until they can get to them.
Owen’s army pursues Sanji and Luffy, and Brûlée intends to succeed, tearfully revealing to everyone that Luffy defeated the once undefeated Katakuri. This revelation leaves everyone in the military absolutely horrified, and that shock eventually turns to anger as the Big Mom Pirates seek to avenge their comrade and brother. Sanji tries to dodge their relentless attacks, but is shot in the arm and the enraged oven lunges forward, attacking Sanji and Luffy with a flaming naginata. However, Ichiji then arrives and hits Owen and several other Big Mom Pirates with explosive blasts and tells Sanji to continue. Remembering how his brothers attacked him for being weak, Sanji continues as Owen’s crewmates check on him. Sanji levitates again and is confronted by Yuen, but before Yuen can attack again with his staff, Yonji steps in and destroys it before grabbing Yuena and reaching out to send the pirate through several buildings and defeat him. One army member then fires a missile at Sanji and Luffy, but Niji arrives and speeds them away, knocking down several Big Mom Pirates in the process with his electricity-charged sword.
After getting out of the city, Niji throws Sanji and Luffy towards the ocean and flies away at high speed. As Sanji and Luffy fly over the blockade fleet, Brownie tells his men to shoot at them, but they are immediately attacked by Reiju, who uses her poison powers to take them down and protect Sanji and Luffy from their attacks. She then joins them in the air and tells Sanji to hold on to Luffy and remember how she freed him from the Germ Kingdom and told him to find people who would appreciate him and his kindness. Sanji and Luffy make it out to sea as the Vinsmokes continue to fight the Big Mom Pirates, and the crew of the Sunny are excited when the two come into view.
The anime adds the following:
As Sanji and Luffy leave right after Sanji’s siblings arrive, the male Decuplets focus on the two straw hats with bazookas. Ichiji, Niji and Yonji then use the Black Bug to intercept the bazooka fire.
The judge ordered his soldiers to attack the ships of Big Mom’s pirates. He didn’t appear in the manga until he saved the Thousand Sunny from Smoothie.
When Nami questions Germa’s presence, Brook wonders if Reiju has come to show her panties.
Reiju talks to Sanji for the last time.
The scene of Ichiji clashing fists with Trouba.
Sanji and Niji’s final conversation is extended in the anime.
In the manga, Reiju only helped Sanji by using the Pink Hornet on some of the Big Mom Pirates. In the anime, she also saves him from bazooka fire.