Special Episode “Luff” is a three chapter “what if” storyline showing what would happen if Sabo had rescued Luffy and Ace at Marineford. It ran in the official One Piece magazine.
Rushing to his brothers’ aid during the Battle of Marineford, Sabo manages to rescue Portgas D. Ace and Monkey D. Luffy from Admiral Akainu at the last moment before Ace’s death.
Following the war, the brothers catch up on an unnamed island and renew their brotherly vow.
Luffy and Sabo wake up from their dreams and are greeted by their respected crews, as they continue their journey.