TV Special
Description
Goemon Ishikawa XIII is a master swordsman and a core member of Lupin III's gang, appearing as a key ally in the crossover special Lupin III vs. Detective Conan and its film sequel. He is introduced as the thirteenth generation descendant of the legendary outlaw Ishikawa Goemon, a lineage that deeply informs his identity and his commitment to the way of the samurai. His most prized possession is the Zantetsuken, an almost mythical blade of extraordinary sharpness capable of slicing through virtually any material, including steel, stone, and even gunfire. This sword is not merely a weapon but a symbol of his honor and discipline.

Goemon embodies the archetype of the stoic and honorable warrior. He is characterized by his calm, serious demeanor, unwavering bravery, and a strict personal code of ethics. He dedicates himself to rigorous training, often meditating or practicing beneath waterfalls to hone his mind and body. This pride in his abilities means that any failure or damage to his cherished Zantetsuken brings him profound shame. While intensely loyal to his companions, he has little patience for frivolity and is frequently irritated by Lupin’s lecherous and mischievous antics. His discomfort around women is a notable trait, as he tends to become shy and flustered in their presence, a weakness that others sometimes exploit. As a deeply traditional individual, he adheres to Japanese customs, preferring native cuisine and clothing such as the hakama.

His role within the group is that of a formidable combatant and a moral anchor. Originally, Goemon began as a deadly enemy of Lupin, seeking revenge after the thief infiltrated his family to steal a secret chemical formula. He made multiple attempts on Lupin's life, even hiring Daisuke Jigen as an assassin. However, over time, he came to respect Lupin’s skills and unconventional wisdom, ultimately switching sides to become one of his most trusted and loyal associates. His relationship with the sharpshooter Jigen is particularly amicable, built on mutual respect as fellow warriors who often work in tandem. In contrast, he generally distrusts Fujiko Mine for her manipulative and self-serving nature, though he will come to her aid if the situation demands it, setting aside his skepticism for the sake of the team.

Within the specific narrative of the crossover films, Goemon's abilities are pivotal. In Lupin III vs. Detective Conan: The Movie, he is coerced into aiding the heist of the Cherry Sapphire, a gem linked to the kingdom of Vespania. Demonstrating his adaptability, he assumes the alias Eishin Wakagomo and even disguises himself as the phantom thief Kaitou Kid to infiltrate a secure location. During a confrontation, his peerless swordsmanship is showcased when he uses the Zantetsuken to slice Conan Edogawa’s turbo-powered skateboard in half, a feat that highlights both his incredible speed and the blade's lethal precision. Outside of the crossover, his character has seen development through challenges that test his resolve. For instance, after suffering a humiliating defeat that damages his sword, he undergoes intense training to sharpen his senses, awakening a sixth sense that allows him to predict an opponent's movements, further cementing his status as a superhumanly skilled warrior.

Goemon is a master of multiple martial arts, including Kenjutsu, Battōjutsu, Jujutsu, Aikido, and Karate. His trademark technique is drawing the Zantetsuken with blinding speed to cut objects, often with the non-lethal intent of disarming an opponent by shredding their clothing or weapon. Following such a strike, he frequently utters a quiet, understated phrase, "I have cut yet another worthless object," betraying his immense confidence and his philosophical detachment from material things. Despite his ancient skills, he is often baffled by modern technology, relying on his companions to handle electronics or drive vehicles. His ultimate loyalty remains with his chosen family, and he has even vowed that his final act alongside Lupin would be to deliver the thief's deathblow, a solemn promise that speaks to the profound and complex bond they share.