Summary:
Zoro reminds Marco of his late friend Ace. He takes Zoro to the roof, but Big Mom joins Kaido there as well.
Chopper works on an antidote while Marco helps some infected with his flames. Although the Pirate Beasts do not want to attack Marco, Queen threatens them with death if they do not. Still, Marco transforms into his phoenix form and flies Zoro to the roof while Robin and Brook run into the castle. Zoro reminds Marco of his memories with Ace.
When Ace was in the Whitebeard Pirates, he begged Whitebeard to let him go to Wano Country to shoot down Kaido. The last time Ace visited the country, he promised to rid the country of hunger. However, Whitebeard didn’t let him go, knowing that Ace wouldn’t stand a chance against Kaidou. Ace decided to get stronger so he could fight Kaida and fulfill his promises.
Nami reveals to Tama that Ace was Luffy’s brother. Tama thinks about when Luffy told her about Ace’s death; although Luffy was very open with her, he regrets how she reacted. Moving on, Tama’s group decides to carry out the strategy Tama laid out.
At the warehouse, Momonosuke hears from Yamato that Ace was Luffy’s brother and Roger’s son. He also hears that Luffy has the infamous initial D in his name.
On their way to the roof, the Norse soldiers try to defend the staircase from the enemy Beasts pirates. Just then Luffy appears and defeats them and goes up the stairs to the next floor.
Marco is being chased by the king and queen. Queen fires bullets at him from his mouth, but the bullets go through Mark’s body. Marco holds the King and Queen in a chokehold and throws Zoro out of a hole in the ceiling. On the roof, Big Mom meets Kaida and finds the samurai defeated on the ground. They discuss the New Onigashima project; although the people enjoy the Fire Festival in the flower capital, Kaidou moves the Onigashi there, even though many die. However, they begin to argue over the Road Poneglyph, where they both agree to negotiate further once the One Piece is obtained.
The anime adds the following:
Chopper continues to work on the antidote.
During Nami and Tama’s conversation about Luffy and Ace, Usopp brings up the former’s argument with Vivi and his meltdown over Ace’s death.
The anime expands on the following:
Marco’s memory of Ace and Whitebeard.
In the manga, Big Mom was already with Kaida when Prometheus and Zeus recharged by consuming fire and lightning. In the anime, she was on her way to Kaidou when the Homies charged