Umiotoko (Sea Man)

The Umiotoko is depicted with the head and upper body of a reddish-pink humanoid with fish-like scales along its back and a prominent dorsal fin. It has large, wide-eyed, staring eyes with yellow irises, a hooked nose, and a visible row of sharp teeth. The creature emerges from stylized greyish-blue water represented by looping, traditional wave patterns. In the lower left foreground, a portion of another creature is visible, featuring white skin, blue and red decorative markings, and a large black circle, suggesting a mask-like or stylized appearance. The background is a plain, aged paper tone.

The Umiotoko is a legendary creature from Japanese folklore, often appearing in scrolls depicting various yōkai (supernatural monsters). Such images serve as visual catalogs of traditional Japanese cryptozoology, documenting beliefs in sea-dwelling entities that sailors and coastal communities encountered.