Duwa is a character in Dave the Diver.
Duwa is the smith in the East side of Sea People Village. Dave finds Duwa feeling sick and offers to bring him coral porridge to help cure his illness. Afterwards Dave helps Duwa to gather fruits from the Divine Fruit Tree.
Once Duwa feels better and has stocked up his forge, Duff hints to find someone able to find materials to make weapons that work in glacial temperatures, opening Duwa's shop for weapons materials.
For Bei, the Sea People currency, Duwa sells multitude of unique materials needed for high end weapons and also fragments. He also buys ores and other materials.