Arc 18The Uchiha Challenge
Sasuke survived a brutal training battle and earned Natsu’s approval as the Uchiha Clan’s growing power unsettled the World Government and Marines. The arc ended with Madara arriving outside Sabaody, where Akainu and the Marines prepared to face the Uchiha warship.
- Sasuke unleashed Lightning Release: Wrathful Thunder Heavenly Punishment, destroying the training ground before emerging from the rubble to defeat Natsu’s clone at the cost of a severe chest wound.
- Natsu carried Sasuke to the medical laboratory, where Vallen and Caesar treated him, and reassured Fugaku that his life was not in danger.
- Madara reflected on the World Government’s abuses and received Natsu’s order to travel to New Marine Headquarters while the Uchiha Clan continued consolidating its power.
- Izuna reported that his simplified Flying Thunder God technique was ready for field testing as Sengoku’s officers recounted how Uchiha forces had overwhelmed Blackbeard’s crew and forced the Marines to retreat.
- The Five Elders warned that the Uchiha Clan had become too strong for Marine Headquarters to counter, and Imu ordered secret plans to capture a clan member, strengthen the Navy, and withdraw from the New World.
- Madara sailed toward Sabaody aboard an Uchiha warship while Sengoku ordered the Marines to track it and avoid provoking the clan.
- Blackbeard lay badly injured after escaping the battle with the Uchiha, vowing not to forget his humiliation.
- Kizaru sensed Madara offshore at Sabaody, and Akainu alerted the vice admirals as Madara surveyed the Marine buildup from his ship.