One Piece episode 675

It aired on Sunday, 21 December 2014.

A Fateful Encounter! Kyros and King Riku

While Usopp faces Trebol, the Thunder Soldier recalls his time as Kyros. After much time as a gladiator, Kyros manages to become King Riku's captain of his guard and later marries his eldest daughter Scarlett and they together conceive Rebecca. As they have a happy life together as a family, Doflamingo ruins it as he attempts to take over Dressrosa that night 10 years ago.