For quite some time, since the end of the Raid of Onigashima in the Wano Country Arc, Eiichiro Oda has been teasing the secrets behind one of the most important individuals in the world of One Piece. As a legendary figure from the Void Century, Joy Boy has ties to virtually every facet of the lore of One Piece, from the Ancient Kingdom and the Poneglyphs, to the Will of the D., and the many people from all over the world who bear this initial in their names.