One Piece: Episode of Sabo - 3 Kyoudai no Kizuna Kiseki no Saikai to Uketsugareru Ishi

Sabo looks back on the childhood that bound him to Luffy and Ace as sworn brothers, when the three boys shared cups of sake and dreamed of one day taking to the sea as pirates. His memories follow the tragedy that separated them and the events that eventually returned his lost past to him.

Years later, Sabo enters Dressrosa as a member of the Revolutionary Army and learns that Ace's Flame-Flame Fruit is being offered as a prize in the Corrida Colosseum. The chance to inherit Ace's will leads him toward an unexpected reunion with Luffy, seen from the perspective of the brother everyone believed was gone forever.