Void Century One Piece Joy Boy
It was joy boy who made a promise with the inhabitants of fish man island regarding noah and he was the original person to leave a treasure at laugh tale.
Void century one piece joy boy. He was first mentioned on the ryugu poneglyph read by nico robin while at the sea forest. Joy boy is known to have had some connections to fishman island back during the times of the void century which was 800 years ago in the one piece world. Joy boy is one of the few figures known to have lived and fought against the ancient alliance during the void century and managed to leave a lasting mark on the world.
Joy boy also left behind a certain item of unimaginable value in the last island of the grand line. Joy boy is one of the most mysterious characters in the series. According to what the story tells us joy boy wanted the fishmen to live with the humans on the surface but because of some reason he failed in keeping his promise.
Joy boy was an extremely relevant figure of the void century who played an important role in the history of fish man island and left behind a certain item of unimaginable value in the last island of the grand line. According to whitebeard the world will be shocked to its core when it is found. He holds a lot of importance as he existed before the events of the void century.