one piece

During the pirate era, around the time Gold Roger's reign began, there was a very powerful criminal organization that brought the world to its knees. But one day, the leader of that organization decided to retire, and the organization split up. Now we arrive at the present day. Luffy and his crew were on Builders' Island, and the leader of the most wanted criminal organization was there living a peaceful life until the revolution came, and the island's mayor was attacked by his best servants, and Nico Robin betrayed the crew.