The compound 魑魅魍魎 (Chīmèi wǎngliǎng; Japanese chimimōryō) appears in ancient Chinese chronicles such as the Zuo Zhuan and in later commentaries. Traditional etymological commentary (recorded in classical sources cited by later encyclopedic entries) associates 魑 with a mountain spirit and 魅 with a marsh/swamp spirit, and treats wangliang/mōryō as water/swamp gods; from those images the term expanded into a broader label for spirits arising from the 'strange atmosphere' or life energy of natural features. Medieval and early modern Japanese works (e.g., Wakan Sansai Zue, Wamyō Ruijushō) adopted and reframed the compound within Japanese classificatory systems—at times associating its elements with mountain gods (yama-no-kami), water gods (suijin), oni, or general yōkai—so the phrase functions as a transmitted, adaptable category rather than a single origin myth.
Descriptions vary by the two constituent terms. Chimei are described in classical glosses as spirits 'born from the strange atmosphere of the mountains and forests,' often characterized as transformed from wood and stone and depicted with a human face and an animal (four‑legged) body. Wangliang (mōryō) are described as emerging from mountains, water, trees and rocks; reported features include the appearance of a child standing on two feet, dark red skin, red eyes, long ears, beautiful hair, and a voice resembling a human's. Later Japanese sources sometimes treat mōryō with oni‑like imagery or as water deities; modern media recycle and vary visualizations widely.
Across sources chimimōryō are described as spirits that arise from the life energy of natural things and that can harm or deceive humans. Wangliang/mōryō in particular are said to 'fool humans' and are reported in classical descriptions to eat the dead; vocal mimicry or a humanlike voice is specifically noted for mōryō. In modern fiction the compound is used broadly for antagonistic supernatural beings, but the traditional accounts supplied do not enumerate uniform magical powers beyond these general behaviors.

Oni
Powerful supernatural beings of Japanese folklore — associated with misfortune, disease, and the punishment of sinners in hell. Fearsome, often depicted as guardians of the underworld.

Yuki-onna
The Snow Woman of Japanese folklore — a spirit born of blizzards who appears to travelers lost in snowstorms. Beautiful and lethal, she can show mercy or bring death depending on her mood.

Rusalka
Water spirits in Slavic folklore — the spirits of young women who died by drowning or suicide, bound to rivers and lakes. Beautiful and dangerous, they can bewitch men to their deaths.

Banshee
A female spirit of Irish and Scottish folklore whose wail heralds an impending death in a family of Gaelic descent. Not a cause of death — a witness to it.

Pishacha
Flesh-eating spirits of Hindu mythology that haunt cremation grounds and are associated with disease, madness, and possession. The lowest class of demon in the Vedic hierarchy.

Naga
Divine serpent beings of Hindu, Buddhist, and Jain cosmology — powerful guardians of water, earth, and underground treasures. Revered as deities in South and Southeast Asia.

Yaksha
Nature spirits of Hindu, Buddhist, and Jain cosmology — guardians of forests, treasures, and wilderness. Ambivalent beings, capable of great benevolence to the respectful and terrible harm to the greedy.
Community Record
- [1]Chimimōryō (Wikipedia). Wikipedia, 'Chimimōryō' entry (summarizing classical Chinese and Japanese sources and modern uses).wiki
- [2]Miracle Psychicer Seizan (archive summary mentioning chimimōryō). Archive.org item summary referencing 'Chimimōryō (evil spirits of the mountains and rivers)' in a modern OAV plot summary.other
- [3]Berserk Wiki — Chimimoryo. Fandom/Berserk community entry noting the manga's use of 'chimimoryo' as a label for an astral/evil spirit encountered by characters.other
- [4]Chimimoryo A Soul Of Demons (movie poster / film reference). Reference to a 1971 kaidan film using the term 'Chimimoryo' in its title, illustrating modern cultural reuse.other
