Full summary, thanks to redon from Arlong Park Forums.
Chapter 992: "Remnants".
In the Color Spread, the Straw Hat Pirates are eating on the sea train. Kumamon (Kumamoto Prefecture's mascot) is sitting in the back with Jinbe.
Chapter starts with Big Mom, Perospero and Marco meeting and talking (they are talknig friendly, like old friends). It turns out Marco and Perospero temporarily joined hands to fight against Kaidou, but Big Mom tells Perospero that her decision to join hand with Kaidou is final.
Perospero: "But we want to see you become the Pirate King!"
Big Mom: "I know that. Do you not trust me?"
After their conversation, Perospero decides to agree with Big Mom decision. Marco accepts that their temporary alliance ends there. Big Mom asks Marco why would a man at his calibre lend his hand to those kids.
Big Mom: "Why has the remnants of Shirohige became so lost?"
Marco: "We are not bound by Shirohige's words. We are free to act however we want."
Big Mom: "I see. "Dead man has nothing to say". Do as you want then.
Carrot sees Perospero and runs toward him to avenge Pedro.
Luffy still running toward the castle, the samurai tell him to go ahead. Shinobu and Momonosuke are still running away from Yamato.
Black Maria is waiting at the upper floor of the castle, she's playing a song for her subordinates. The song is about two people who want to meet each other so much and finally meeting under moonlight in a snowy night.
Cut to the top of Onigashima's dome. Kaidou roars and his roar becomes thunders, that comes out from his mouth. The Red Scabbards avoid the thunders and then attack Kaidou together.
Nekomamushi uses his electric claw to smash Kaidou right in the face. Kawamatsu uses "Amanogawa" to attack Kaidou's neck making him bleed. Kaidou slaps Kawamatsu away.
Inuarashi then attacks Kaidou, he pierces his leg-sword into Kaidou's body along with an electric shock. Kiku and Izou attack together in a combination attack. Kiku uses "Zansetsu Gama" (Lingering Snow Scythe) and Izou uses "Dangirigan" (Cutting Bullets).
Kaidou gets really annoyed, he wonders why they manage to damage him despite having power incomparable to Oden. Kaidou uses "Boro Breath" again, but Raizo uses a ninja scroll to absorb the breath, then he wraps itself around Kaidou and return the attack with "Makimaki no Jutsu".
A little flashback starts, we see the Red Scabbards training during the time after Oden returned from his adventure. Oden wanted to teach them his two-sword style but none of them accept it, saying they have their own fighting styles already.
Toki said Oden that they actually fought behind his back for the title of Oden's number 1 disciple. Oden tried to teach them about Ryūō too, but none of the Red Scabbards listen to him.
Back to the present. Kinemon, Denjiro, Inuarashi and Ashura pull out 2 swords and do the "Oden Nitoryuu" pose. Then they all attack Kaidou together using "Togen Totsuka", strking Kaidou at exactly the same spot Oden did in the past.
Kaidou's wound start to bleed and his eyes turn white...
End of chapter. No break next week.
