Kawauso/Kawaso

The Kawauso is a form of Yokai from Japanese myth sometimes equated to the Kappa. They’re known to cause mischief like Kitsune and Tanuki. They are related to river otters and can be found all across the country. Despite this, the real Japanese river otter was declared extinct in 2012. They have been depicted walking upright and wearing sedge hats. They commonly take the form of attractive people, often women, sometimes attempting to lure in victims they then kill. Other times they challenge humans to sumo wrestling matches.

Citations:

Foster, Michael Dylan. The Book of Yokai: Mysterious Creatures of Japanese Folklore. United States, University of California Press, 2015.