Chapter 992 is titled "Remnants".
Marco and Perospero meet with Big Mom, and she affirms that she is allied with Kaidou. Perospero accepts this, and so Marco parts ways with him; meanwhile, Carrot goes to attack Perospero to avenge Pedro's death. On the roof of the Skull Dome, the Red Scabbards continue to successfully penetrate Kaidou's skin with their Busoshoku Haki. Kaidou attempts another Bolo Breath attack, but Raizo absorbs it with a scroll and unleashes it back at him. Kin'emon, Denjiro, Ashura Doji, and Inuarashi then utilize Oden's Nitoryu and strike Kaidou simultaneously in the place where Oden scarred him 20 years ago.
Charlotte Perospero has reached Big Mom, who affirms that she is indeed in an alliance with Kaidou, revealing that the alliance was her idea. Perospero reminds Big Mom that their crew seeks to make her the Pirate King, but she replies that she knows and asks if her children do not trust her. This seems to assuage Perospero, and he drops the issue. Marco then speaks, noting that the alliance between him and Perospero to take down Kaidou is no more. Big Mom chides Marco for joining the alliance against Kaidou, saying that the remnants of the Whitebeard Pirates had lost their way. However, Marco responds that they were no longer bound to Whitebeard's will now that he was dead, and Big Mom understands this and accepts Marco's decision. Meanwhile, Wanda chases after Carrot asking her where she is going, and Carrot reveals that she is going toward Perospero to avenge Pedro's death. Elsewhere, Luffy resumes heading toward the dome roof while the samurai clear the way for him, and Yamato continues chasing after Shinobu and Momonosuke.
Meanwhile, Black Maria and some of her crewmates have hid out in the Tatami Room away from the fighting, and they ask Maria to play a song for them. As Black Maria strums up her shamisen and begins to tell a tale, the Red Scabbards charge toward Kaidou on the dome roof. Kaidou gives a mighty roar, which summons small bolts of lightning that crack the ground underneath the samurai. Nekomamushi scratches Kaidou's head area with his claws, while Kawamatsu performs a circular sword strike around Kaidou's head. To the shock of Kaidou's subordinates, both attacks manage to wound him, though Kaidou is able to knock Kawamatsu into a rock with his foreleg. Inuarashi stabs Kaidou with his prosthetic sword leg, while Kikunojo and Izou respectively strike the Emperor with flying slashes and bullets. Kaidou wonders in bewilderment how the Scabbards are able to hurt him, as none of their attacks resembled Oden's.
Kaidou readies another Bolo Breath attack against the samurai, but Raizo then summons a giant scroll which intercepts the fire blast and absorbs all of it. Saying his scrolls can wrap around anything in existence, Raizo has the scroll wrap around Kaidou's entire dragon body before releasing the fire from it. Kaidou wails in pain as the fire engulfs him, but emerges without any visible damage. Kin'emon then remembers a time when Oden offered to teach the Scabbards his Oden Nitoryu fighting style, but they declined. Oden later wondered why they would not learn his great style, and Toki replied that if they had, they would have fought amongst each other over who would be Oden's top disciple since they all loved him so much. In the present day, Kin'emon, Denjiro, Ashura Doji, and Inuarashi each pull out two swords and stand in a stance resembling Oden's. Kaidou derides their imitation of Oden as cheap as he prepares another Bolo Breath, but the four samurai then leap toward him and simultaneously cut him in the place where Oden scarred him 20 years ago.
- Marco and Perospero meet with Big Mom.
- Carrot goes after Perospero to avenge Pedro.
- Luffy continues forward to the top of the dome.
- Yamato is still chasing Shinobu and Momonosuke.
- Nekomamushi, Inuarashi, Kawamatsu, Kikunojo, Izou, Denjiro, and Ashura Doji are able to injure Kaidou.
- Raizo uses a scroll technique to absorb Kaidou's Bolo Breath attack and reflect it back at him.
- Kin'emon, Denjiro, Ashura, and Inuarashi cut Kaidou in the x-shaped scar that Oden gave him 20 years ago.