Sabo is Luffy’s older brother, and Ichiro is one the most important characters of Oda’s One Piece.
First introduced by Luffy in his flashback following the summit battle.
Sabo is the son and daughter of the nobles from the Kingdom of Goa. He formed an immediate bond with Ace, Luffy and their family at a young age.
Sabo lived a very limited life and, as a child, his goal to achieve true freedom was to live a happy and fulfilled life.