Numa-gozen (Yamagata)

Numa-gozen ("Lady of the Pool") is a female entity said to inhabit ponds and pools in the Tohoku region, often depicted with a serpent-form lower body. Folklore from mountainous Yamagata and Fukushima preserves accounts in which anglers and travelers meeting a beautiful woman beside a pond are drawn into the water, or in which violations of pond taboos (killing or harsh words) bring retribution. Numazawa Pond in Kaneyama Town, Fukushima, enshrines Numa-gozen and continues annual rites tied to water-deity belief. The Edo-era Shinpen Aizu Fudoki and other Tohoku gazetteers record analogous female serpent-bodied entities, and Murakami Kenji's Nihon Yokai Daijiten (Kadokawa, 2005) treats Numa-gozen as a discrete entry. The International Research Center for Japanese Studies Yokai Folklore Database also records Yamagata and Fukushima cases.