Haredas

Haredas is an old man who lives in Weatheria. In the anime, Haredas uses a technique in the form of a bubble-like barrier that allows him to be unfazed by the extreme weather while walking in Weatheria. Whether this is some new (or old) technique or possibly a type of technology native to the sky islands is unknown at this time.

Personality
Haredas has shown to have a rather carefree upbeat personality, smiling and seemingly enjoying himself mostly. He is also slightly absent minded and bumbling.

History
Haredas first appears when Nami ends up on Weatheria, due to the events of Sabaody Archipelago. He shows her around the island, and showing her how to use the wind knot to bring rain and climate changes.

Trivia

 * He somewhat resembles popular depictions of Merlin and most notable, Nami is commonly compared to a "witch" while Haredas resembles a wizard.