In contrast to its overwhelming popularity, Karakasa-kozou is a peculiar yokai that has almost no specific stories or legends rooted in any particular region. Among the few surviving records in literature, the 1762 (Horeki era) collection of strange tales *Sasayaki Senri Shingo*^[2] lists the "Karakasa of Tokabo" as one of the monsters appearing at Tokabo in Kofukuji Temple, Nara. Additionally, the *Sasagami-mura History*^[3] from Sasagami Village, Niigata Prefecture (now Agano City) records a fragmented oral tradition stating that "a karakasa monster appeared at a place called Sanjukari." However, neither are narratives with a clear plot or malicious intent.

In traditional yokai concepts, "tsukumogami"—old tools that have transformed—were vengeful spirits born from the resentment of tools discarded by humans, as seen in the *Tsukumogami Emaki*. However, Karakasa-kozou shows none of this gruesome resentment; it is depicted entirely as a harmless trickster that merely surprises people on dark roads. Some view this unique one-eyed, one-legged appearance as a parody of the lineage of one-legged mountain spirits (the fallen forms of mountain gods), such as the "Ippon-datara" of the Kumano region. Yokai researchers, including Masanobu Kagawa (in *The Edo Yokai Revolution*^[5], etc.), evaluate Karakasa-kozou as the culmination of "a yokai liberated from the terror of narrative and consumed as a character." Lacking a terrifying curse, it has captured the hearts of children from the Edo period to the modern day purely through its bizarre and endearing visuals—a prime example of a yokai whose "appearance has surpassed its story."