One Piece: Dark Night Starfire

The protagonist's powers: Flame-Flame Fruit (fully developed), killing intent, madness. Weapon: unranked demon blade, Kikoku (which devoured the Op-Op Fruit). The first volume mainly tells the story of the protagonist in the Rocks Pirates. In the second volume, the protagonist uses nations, movies, music, and news to change the way the world thinks. By exploiting Luffy's recklessness, he eventually raises the banner of rebellion, overthrows the World Government, and completes his revenge!