Kawa-Otoko (川男) are yokai that spend their time near the river.
The Kawa-Otoko are a pair of yōkai that resemble middle-age men, with long straight black hair that reaches their backs. They appear to be wearing striped green skinsuits, with short fins protruding from their elbows and thighs. The two are always seen in their sitting position, with their hands over their knees. The two are nearly identical, with the only differences being their height, the left one being slightly taller, and the amount of facial hair they have. The left one sports a full grown beard and mustache while the right one has several stubs of hair on his chin.
The two are rather apathetic, rarely showing any emotions, even when conversing with one another. The two are only ever seen sitting by a river, often having brief discussion about recent events.
Kawa-Otoko appear in episode #42 of the fifth anime adaption, Yōkai of Obebe Swamp Kawauso!.