Chapter 820

Chapter 820 is titled "Dog and Cat Have a History".

Cover Page
From the Decks of the World: The 500,000,000 Man Arc Vol 13: Torino Kingdom

Short Summary
Inuarashi and Nekomamushi reveal that they sailed with Gol D. Roger along with Kozuki Oden, and Luffy decides to go rescue Sanji along with Nami, Chopper, and Brook. The remaining members of the alliance plan to search for Marco for help in the upcoming revolt against Kaido, but do not know where he was due to the remaining Whitebeard Pirates getting defeated by the Blackbeard Pirates.

Suddenly, Zunisha begins shaking, and Luffy hears a voice.

Chapter Notes

 * The citizens of Torino Kingdom receive Chopper's new wanted poster.
 * Inuarashi and Nekomamushi reveal to have spent time as members of the Roger Pirates alongside Kozuki Oden, but did not go to Raftel.
 * They also reveal that they spent time aboard the Moby Dick, with the Whitebeard Pirates.
 * The final destination of the Grand Line by way of the Log Pose is revealed to not be Raftel, but is likewise important to the journey.
 * Inuarashi says that is where those who traveled through the Grand Line would learn about Raftel, the poneglyphs' purpose and the writing of the ancients.
 * Marco and the remaining Whitebeard Pirates are revealed to have fought the Blackbeard Pirates a year earlier and were defeated, ultimately leading to Teach becoming a Yonko.
 * The Whitebeard Pirates disappeared since their defeat.
 * Nami, Chopper, and Brook decide to join Luffy in his mission to rescue Sanji.
 * The Ninja-Pirates-Mink-Samurai Alliance decide to separate and make plans to regroup on Wano.
 * Law and the samurais plan to head to Wano Country in The Heart Pirates' submarine.
 * Nekomamushi and the Guardians will search for Marco and ask for his help.
 * Zou starts to shake and Nekomamushi claims to be the result of Zunisha crying.