Seitarou Higuchi appears in the animated film *Night is Short, Walk On Girl*. Identifying as a tengu from Japanese folklore, he presents in human form with a distinctive large chin and black hair in a ponytail, consistently wearing a green yukata. He is free-spirited and opportunistic, frequently engaging in money-making schemes. He pursues various forms of smoking, including pipes and cigarettes. Witnessing the Girl with Black Hair defend herself against Tōdō's advance at a bar, he and Hanuki invite her to gatecrash parties around Kyoto. His actions throughout the night are driven by whims and opportunities for profit or amusement. Later, Higuchi participates in the used book festival subplot, motivated by the pursuit of the rumored miracle cold cure "Junpero" for its profit potential. This connects to his established pattern of seeking valuable or rare items, subtly referenced regarding a past interest in the Kamenoko Scrub Brush. A significant rivalry exists between Higuchi and Jougasaki, described as a long-standing "proxy proxy war." Higuchi possesses a layered background involving shifting identities; while presenting as a tengu here, he has previously claimed to be a "god of matrimony." Within the film's exploration of coincidence versus fate, Higuchi attributes events, particularly chance encounters involving the Girl with Black Hair and Senpai, to grand cosmic designs like "fate’s gears turning," contributing to the central debate.