TV-Series
Description
Inspector Koichi Zenigata remains a dedicated Interpol officer in Lupin the Third: Part 5, continuing his lifelong mission to capture the infamous thief Lupin III. His appearance stays consistent with his classic design, wearing a red trench coat over a tan suit with a white shirt and dark bluish-gray tie, topped with a brown fedora featuring a tan hatband, paired with dark gray socks and brown boots. While his origins trace back to the Tokyo Metropolitan Police, he transferred to Interpol specifically to devote himself entirely to apprehending Lupin, a pursuit that has become the central focus of his existence.

Zenigata's personality in Part 5 blends his traditional seriousness with moments of comedic earnestness, though his core traits remain an unwavering sense of justice and an impulsive, honor-driven dedication to his duty. He is widely respected as an expert criminal catcher, having taken down countless criminals long before he ever encountered Lupin. Despite his obsession, he resists bribery and maintains an old-fashioned moral code that often puts him at odds with corrupt authority figures. His singular focus on Lupin strains his personal relationships and prevents long-term commitments outside his work, leaving him with minimal personal life and a pattern of emotional vulnerability when his quarry appears to be in genuine danger.

His primary motivation remains the capture of Lupin III, though this drive has evolved into something far more complex than simple professional duty. He insists that only he has the right to arrest Lupin, going so far as to protect the thief from assassination attempts by others, including Fujiko Mine. This possessiveness stems from a deep-seated belief that his pursuit of Lupin gives his life meaning, and the thought of a world without the chase is one he cannot accept. In Part 5, this obsession manifests in his willingness to adapt to modern technology, leveraging social media, facial recognition, and other digital tools to track his quarry across the globe.

Within the story of Part 5, Zenigata plays a crucial role as both adversary and reluctant ally. His dynamic with Lupin drives much of the series tension, yet he frequently finds himself collaborating with the thief against greater threats, such as during the Marco Polo dark web incident. When Lupin becomes the target of a global manhunt through the Lupin Game, Zenigata navigates institutional obstacles, including a demotion to the narcotics division, and manipulates circumstances to continue his pursuit. In one memorable sequence, he joins Lupin on a trek through the desert carrying the young hacker Ami, having traveled to a non-UN country where he technically lacked arrest authority by booking a vacation and dragging Lupin back into international territory.

His key relationships in Part 5 center primarily on Lupin, with the young character Ami serving as an observer who comments on their unusual dynamic. Ami suggests that Zenigata might harbor romantic feelings for Lupin, an observation that visibly flusters the inspector. The relationship between Zenigata and Lupin goes beyond simple cat-and-mouse; they share a grudging mutual respect bordering on dependence. Lupin calls Zenigata by the affectionate nickname Pops, and the inspector never complains about it. When Lupin gravely asks Zenigata to keep Ami alive should he die, the inspector refuses to entertain the possibility and promises without hesitation to protect her. Later, when Zenigata's demotion removes him from the Lupin case, the thief repays the favor by manipulating events to help his nemesis capture drug runners, securing his reinstatement.

The character shows notable development throughout Part 5. Episode 20, titled Zenigata, Gentleman Thief, presents a unique situation where Zenigata suffers a head injury and develops amnesia, temporarily adopting the identity Moneta and becoming a thief himself. In this altered state, he mirrors Lupin's methods with such precision that it reveals his deep, intuitive understanding of his quarry's techniques. This episode forces the character to confront his own ideals about justice and what it means to be a gentleman, highlighting the fine line between pursuer and pursued. By the penultimate episode, Zenigata articulates his philosophy clearly: he must defeat Lupin by the book because only then will the thief understand that his actions were wrong. Yet he also expresses hope that after Lupin serves his sentence, the two might share a drink together.

Zenigata possesses notable abilities that make him a formidable opponent despite his frequent failures to secure a permanent arrest. His signature technique involves throwing handcuffs with bola-like precision, a skill derived from the famous Japanese detective Zenigata Heiji. He demonstrates proficiency in judo, karate, and hand-to-hand combat, capable of incapacitating multiple opponents without rising from his seat. His obsession-driven determination grants him near-superhuman resilience; he endures extreme conditions during chases, scales obstacles with ease, and has shown the ability to recover consciousness from tranquilizers far faster than normal. In Part 5 specifically, his adaptability to modern investigative methods demonstrates tactical flexibility, as he integrates digital surveillance techniques with his traditional approach to law enforcement.