Uchiha Yugen, who traveled to Konoha, who became a member of Uchiha, found that the strength he had worked hard could not save Uchiha. Before he was about to exterminate the clan, he awakened the dungeon system. The first dungeon was the world of One Piece. Since this place could not accommodate Uchiha, then survive in another place! When Uchiha descended to the ninja world again, it was the time when Konoha was destroyed! The Uchiha clan who returned from the voyage suppressed all enemies in the ninja world!