A reconstruction based on Toriyama Sekien’s image and its brief note. It lurks along riverbanks and in shallow pools beneath cliffs, seizing fish when the moment is right. Its body is close to a small boy’s in build but covered in coarse hair, and its teeth are file-like, said to rasp flesh from its catch. While traits recalling the kappa (such as webbing and a waterside life) come to mind, definitive attributes like a carapace or head-dish are not attested and are therefore omitted. The “bank” and “cliff” elements in the name are read as descriptive of its haunt, not a regional or clan identifier. Modern commentary notes a cautious link to beings bearing “cliff” in mountain-怪 lexicon (e.g., Takiwaro), but stops short of identification. Extant primary sources are Sekien’s picture and text; no behavior, curse, or offering rites are transmitted. Here it is treated as a small waterside uncanny, silently stalking fish.
Character Profile
This section is our own creative profile for storytelling. It is not historical fact or scholarship.
Yokai Type - Traditional Yokai
Category - Aquatic Spirits
Rarity - Uncommon
Personality - taciturn, cautious
Compatibility - fixated on creatures dwelling in waterways
Abilities - lying in wait and ambush along the water’s edgefeeding with file-like teeth that shave preyslick coarse hair that parts water for swift movement
Weaknesses - unknown, possibly vulnerable to dryness, possibly sensitive to strong sunlight
Habitat - riverbanks, pools beneath cliffs, shallow rocky shallows
