Movie
Description
Nezumi-Otoko is a half-human, half-yōkai entity over 300 years old. His rodent-like features, including prominent whiskers and buck teeth, often lead to the inaccurate translation "Rat Man." The name ねずみ男 lacks inherent meaning in Japanese, though rare kanji usage (根頭見) interprets it as "Guy With the Root-Shaped Head." His true name, revealed in the *Kitarō Jigoku Arc*, is Peke Peke—an inside joke by creator Shigeru Mizuki referencing the Tolai word for "feces."
Physically, he stands 160 cm tall and weighs 49 kg, typically clad in a long, soiled brown cloak over a loincloth. His body is afflicted with ringworms and scabs, attributed to his claim of never bathing—though this is contradicted by occasional depictions of him bathing. His abilities center on repulsive hygiene: foul breath capable of felling insects from 10 meters, flatulence used as propulsion or attack, and slaps that inspired his nickname "BiBiBi no Nezumi-Otoko" (referencing the onomatopoeia for face-slapping sounds).
Background stories conflict across media. One origin depicts his mysterious birth as a human infant on a rat-inhabited island. Another, from *Kitarō Jigoku Arc*, posits he hails from a border realm between the living and dead worlds, where "Nezumi-Otoko" denotes his species. In this arc, he meets a figure presented as his mother, Mami, later exposed as the yōkai Sasori-Onna in disguise. He has a biological sister, Nezumi-Onna (Rat Woman), and a nephew, Nezumi-Neko (Rat Cat), though these familial ties seldom influence main narratives.
His personality is defined by greed, laziness, and opportunism. He boasts a doctorate in "Lazy Studies" from the "Bizarre University’s Filth Department," though its validity is dubious. He consistently prioritizes money, food, and occult interests while disdaining altruism and the cat-yōkai Neko-Musume. He frequently betrays allies—especially Kitarō—for financial gain or to appease stronger foes, yet repeatedly returns to Kitarō’s circle. Despite his treachery, he occasionally demonstrates genuine concern for Kitarō, such as risking his life to save him from threats like Wanyūdō. His loneliness and desire for familial bonds surface in stories involving impostor siblings, though these connections prove fleeting.
Nezumi-Otoko serves as a narrative foil to Kitarō, embodying Mizuki’s original satirical vision. Mizuki identified Nezumi-Otoko as his favorite character, using him to voice critiques of societal norms and inject humor through failed schemes. The character also narrates Mizuki’s *Showa: A History of Japan*, reinforcing his role as the creator’s mouthpiece. Nezumi-Otoko was partially modeled after Mizuki’s friend Umeda Etaro, whose real-life get-rich-quick schemes mirrored the character’s futile pursuits.
In *Obake Nighter* adaptations, Nezumi-Otoko participates in baseball games between yōkai and humans. In the 1985 anime, he bats eighth as the right fielder; in the 1996 film, he is a pinch hitter. Specific role details in these episodes are sparse, aligning with his typical comedic, self-serving portrayal.
Physically, he stands 160 cm tall and weighs 49 kg, typically clad in a long, soiled brown cloak over a loincloth. His body is afflicted with ringworms and scabs, attributed to his claim of never bathing—though this is contradicted by occasional depictions of him bathing. His abilities center on repulsive hygiene: foul breath capable of felling insects from 10 meters, flatulence used as propulsion or attack, and slaps that inspired his nickname "BiBiBi no Nezumi-Otoko" (referencing the onomatopoeia for face-slapping sounds).
Background stories conflict across media. One origin depicts his mysterious birth as a human infant on a rat-inhabited island. Another, from *Kitarō Jigoku Arc*, posits he hails from a border realm between the living and dead worlds, where "Nezumi-Otoko" denotes his species. In this arc, he meets a figure presented as his mother, Mami, later exposed as the yōkai Sasori-Onna in disguise. He has a biological sister, Nezumi-Onna (Rat Woman), and a nephew, Nezumi-Neko (Rat Cat), though these familial ties seldom influence main narratives.
His personality is defined by greed, laziness, and opportunism. He boasts a doctorate in "Lazy Studies" from the "Bizarre University’s Filth Department," though its validity is dubious. He consistently prioritizes money, food, and occult interests while disdaining altruism and the cat-yōkai Neko-Musume. He frequently betrays allies—especially Kitarō—for financial gain or to appease stronger foes, yet repeatedly returns to Kitarō’s circle. Despite his treachery, he occasionally demonstrates genuine concern for Kitarō, such as risking his life to save him from threats like Wanyūdō. His loneliness and desire for familial bonds surface in stories involving impostor siblings, though these connections prove fleeting.
Nezumi-Otoko serves as a narrative foil to Kitarō, embodying Mizuki’s original satirical vision. Mizuki identified Nezumi-Otoko as his favorite character, using him to voice critiques of societal norms and inject humor through failed schemes. The character also narrates Mizuki’s *Showa: A History of Japan*, reinforcing his role as the creator’s mouthpiece. Nezumi-Otoko was partially modeled after Mizuki’s friend Umeda Etaro, whose real-life get-rich-quick schemes mirrored the character’s futile pursuits.
In *Obake Nighter* adaptations, Nezumi-Otoko participates in baseball games between yōkai and humans. In the 1985 anime, he bats eighth as the right fielder; in the 1996 film, he is a pinch hitter. Specific role details in these episodes are sparse, aligning with his typical comedic, self-serving portrayal.