Kappa

Kappa is a Fae (yokai) of rivers and ponds, often depicted child-sized with a turtle-like shell and a shallow hollow or "dish" atop its head that holds water. Smell: a sharp, green tang of wet pondweed and iron, with an intermittent sweet snap like cucumber. Sound: small, wet slaps at the surface, a high, watery chuckle, the scrape of a shell across stones. Temperature: a localized, clammy coolness that clings to the ankles and the reeds—the air where a kappa lingers feels perpetually damp and chilled. Field notes: encounters are best recorded from the bank; the creature moves with deceptive ease in water, leaving webbed prints and a pattern of disturbed algae along the edge.