Rehda is the tribe that worships Alma whom they believe they were descended from. The people and culture of Rehda is referred to as Rehdan. All of the Rehdans encountered by Adol live on The Canaan Islands but it is not known if more live on the unexplored regions west of The Great Vortex. Most of the living Rehdans is secluded to the Quatera Island in the Rehdan Village after the increase in Eresians caused great alarm to the Rehdans.
The Rehdans' most distinct features are their pointed ears and tail which greatly contrasts with all other races introduced so far.