Live action TV
Description
Jiro Ueda is a central character in the Trick franchise, appearing as a professor of physics at a Japanese university. He is a tall, straight-laced academic who holds a deep and unwavering belief that all supernatural phenomena can be explained through the lens of science. This skepticism defines his public persona, but his personal behavior often contradicts his professed rationality. Despite his intelligence, Ueda is surprisingly gullible and easily frightened by anything he perceives as eerie or otherworldly, frequently reacting with exaggerated terror and even fainting at the slightest hint of a genuine ghost or curse. This stark contrast between his bold, scientific rhetoric and his cowardly, superstitious nature is a primary source of his character's humor.

His motivation stems from a desire to expose frauds and uphold scientific truth, but he is also driven by a strong sense of vanity and a thirst for recognition. He has authored several books debunking psychic powers, and his reputation as a debunker of the supernatural is a point of great pride. Ueda is the one who, through a public advertisement offering a reward to anyone who can prove the existence of magic, first encounters the impoverished magician Naoko Yamada. Impressed by her simple tricks, he enlists her reluctant help, creating an unlikely partnership where his theoretical knowledge complements her practical understanding of illusions.

Within the story, Ueda serves as the scientific counterpart to Naoko's practical magician skills. While Naoko intuitively sees how a trick is performed, Ueda often provides the mathematical or physical explanation for the phenomenon, though his explanations are frequently convoluted or unnecessary. His role is not that of a detective but of an academic who, despite his official credentials, is largely incompetent in actual fieldwork and depends entirely on Naoko to solve the mysteries they investigate. He is frequently dragged into dangerous situations by the promise of fame or the simple inability to resist a challenge to his worldview.

The most significant relationship in Ueda's life is his complex partnership with Naoko Yamada. Their dynamic is one of constant bickering and mutual disrespect, yet they share an undeniable, deeply entrenched bond. Ueda refers to Naoko dismissively as "You" in English rather than by her name, and she, in turn, criticizes his cowardice and gullibility. Their relationship is laced with crude, running gags about their physical inadequacies, specifically Ueda's implied large penis and Naoko's insecurity about her small bust. Despite their constant fighting, they work together seamlessly, and a subtle, often unspoken romantic tension persists throughout the series. He also frequently interacts with the bumbling police detective Kenzo Yabe, whose incompetence often complicates their investigations, and Ueda tends to treat him with thinly veiled superiority.

Over the course of the series, Ueda's character develops from a relatively unknown professor into a famous media personality and author on the subject of supernatural frauds. However, this external growth does little to change his essential nature; he remains as cowardly and prone to panic as ever, relying on Naoko just as much in later installments as he did in the beginning. His core arc is less about personal transformation and more about the deepening, unacknowledged partnership with Naoko as they face increasingly elaborate cases together.

In terms of notable abilities, Ueda possesses a high-level academic understanding of physics and mathematics, which he uses to analyze and explain the scientific principles behind seemingly impossible events. He also ironically claims to be a master of several martial arts, including karate, judo, and sumo, which he has purportedly learned via correspondence course. He demonstrates a strange proficiency in shouting the English word Jump before making a dramatic leap or, more commonly, unsuccessfully attempting to vanish from a scary situation. Despite all his claims and academic titles, his most reliable skill is his unshakeable, if illogical, faith in Naoko’s ability to uncover the truth, even as he loudly and repeatedly questions her methods.