After the terrible battle of Marineford, Luffy still remembered his childhood with Dadan and Ace. A childhood in which he learned many things, such as how to use his power, and the first fisting of his techniques. With them, a third child: Sabo. For him and Ace, he was like a brother, but the origins of the young man will soon catch up with him. He will then learn a terrible secret: a plan in which Ace and Luffy could well lose their lives.