Based on Kagoshima Prefecture folklore, Ittan Momen manifests as a white cloth strip roughly 10 meters long and 30 centimeters wide. This entity attacks humans by wrapping around necks or faces to suffocate victims, typically solitary travelers at night. Historical accounts tell of victims cutting the cloth with blades, causing it to vanish while leaving bloodstains. These tales served as nighttime cautionary warnings. Creator Shigeru Mizuki reimagined Ittan Momen as a benevolent yōkai in *GeGeGe no Kitarō*. This sentient strip of white cotton cloth features thin, pointed eyes lacking discernible pupils and arms with varying numbers of digits across anime adaptations. Unlike the traditional formless cloth, it possesses a defined head region described as its hardest body part in the manga. It retains flight capabilities, using them constructively for transportation, often carrying Kitarō and allies. Folkloric weaknesses to scissors, fire, and water persist. As a core Kitarō Family member, Ittan Momen battles antagonistic forces. It demonstrates combat proficiency through constriction tactics and aerial maneuvers, with Medama-Oyaji entrusting it to lead troops. The character exhibits a preference for direct confrontation over negotiation, earning Nezumi-Otoko's "war hawk" description. Despite lacking a visible mouth, it consumes food and beverages, showing documented preferences for chocolate and sweet potato shochu. It maintains a fastidious nature, actively avoiding dirt and requiring stitching when torn. Personality incorporates regional traits, notably a Kagoshima dialect in most anime adaptations. It expresses fondness for attractive women and finely crafted kimonos while disliking utilitarian treatment—such as being used as a loincloth—and mechanical laundering processes. Its marital status is consistently noted as "single and looking" across media. In the film *GeGeGe no Kitarō: Yōkai Tokkyū! Maboroshi no Kisha* (1997), incorporating elements from *The Phantom Train* and *The Great Yōkai War* arcs, Ittan Momen fulfills its established role as transportation support. Cross-adaptation continuity shows resilience: it perishes during the manga and first anime's *Great Yōkai War* arc when pierced through the heart by a witch's poisoned needle, only to return inexplicably in subsequent stories. Later media, like the fifth anime series, introduce new vulnerabilities such as energy drainage by vampire entities. Visual consistency endures across decades of adaptations, primarily as an elongated cloth with eyes and limbs, though artistic details like crease patterns, eye coloration, and limb proportions vary between anime iterations. The character appears in spin-offs and crossovers, including baseball-themed manga narratives and the *Yōkai Rally* racing event, functioning as camera equipment transport and announcer support. Modern reinterpretations in franchises like *Yo-kai Watch* retain the cloth-based design while altering mythological attributes.