Vol. 4A New World Order
Katsuo stopped Madara’s threat to the Shinobi World, then left with Kaguya and Madara and overthrew the World Government in the pirate world. He crushed the Emperors’ alliance, forced Shanks to submit, and began rebuilding the government while investigating Devil Fruits.
- Katsuo killed Shisui and Itachi, forced the Old Clan Grounds to join or face death, and advanced his cultivation with natural true fire and a Divine Tree root.
- Madara revived the Ten-Tails while Katsuo was in seclusion, and Number Ten joined the battle before Madara absorbed it and became Sage of Six Paths Madara.
- Katsuo ended the Infinite Tsukuyomi, destroyed Black Zetsu, freed Kaguya, and prepared his family for the Otsutsuki threat before leaving with Kaguya and Madara.
- Katsuo, Kaguya, and Madara reached the pirate world and boarded Urouge’s ship, where Katsuo ordered Urouge to release the women and urged Madara to follow his whims.
- Katsuo and Madara defeated the Marines and destroyed Mariejois, ending the Celestial Dragons’ rule and establishing a new government.
- Katsuo and Kaguya grew closer as the government offered pirates amnesty and gave them ten days to reform, while Luffy refused to abandon piracy.
- Katsuo defeated Whitebeard and Big Mom Linlin, forced Shanks to pledge allegiance, and imprisoned the Straw Hat Crew after Ace was executed.
- Kaguya defeated Kaido and King at Mariejois, and Katsuo began reorganizing the government and studying Devil Fruits to copy their abilities.