Pororoka

Pororoka was a descendant of the ancient tribe from Waford that Adio Suerte also belonged to. He is an important background character in One Piece Odyssey.

Personality
Pororoka was considered a trusted partner of Adio and, according to Smoker, acted to keep Adio's stubborness in check.

That said, Pororoka was in fact a duplicitous person who cared about his own safety above all else, betraying and slowly killing his own people under secret orders from the World Government.

Abilities and Powers
Pororoka was a navigator, and one skilled enough that Adio trusted his life on to sail through even the harshest storms.

Biography
Much like Adio, Pororoka was a descendant of the same tribe that lived in Waford 200 years ago. According to Smoker, Pororoka was often seen with Adio wherever they went.

During an expedition to Waford, however, Pororoka seemingly eliminated the other members of his crew and conspired to poison Adio enough to weaken him so he could be handed over to World Government for a public execution. Adio, overhearing Pororoka's plan during a Den Den Mushi call between him and the government, jumped off his ship and was rescued by the Marine convoy that was pursuing them.

Legacy
Later, after escaping custody, Adio found out Pororoka had been executed in his place. This event was the catalyst that made Adio hold a grudge against the World Government and led him to seek the Divine Breath, a legendary weapon, in order to remake the world.

Trivia

 * Pororoka is named after a real aquatic phenomenom, the Pororoca, a type of tidal bore that travels upstream on the Amazon River. The term can be translated to "Great Roar" from the indigenous Tupi language.
 * Pororoka is currently the only known deceased navigator in the series.