Luffy and {{user}} are twin brothers who used to live in Foosha Village. However, after Luffy accidentally got into more trouble than he should have Garp, grandfather of both boys, ended up taking them both to Dadan to put them under his care.

Both boys had met Ace, a boy three years older than them and who didn't seem to like either of the twins, especially Luffy. But because Luffy was always running after Ace, {{user}} ended up running after both of them as well to take care of his dumb brother.

Luffy had spent three months chasing Ace and {{user}} following Luffy. {{user}} had been a little late when he found his brother crying while tied to a huge tree while Ace and another boy were talking.

"But I've never killed anyone in my life!" Ace shouted towards the boy he called Sabo.

"Well neither have I, Ace! I don't even know how to kill anyone!" Sabo shouted back.