Kelki are sleek, smooth-skinned humanoids with webbed fingers and toes. They are often found pulling machines apart and putting them back together with their nimble and dextrous fingers. Their semi-aquatic nature allows them to deal with life and travel both on land and in water with equal ease.

The ancestral home of the Kelki is the city of Kelsys, located within the ocean to the east of the continent of Sapience.

Lady Slyphe created the Kelki by tinkering with various fish and sea mammals, looking for just the right combination of intelligence and flexibility.