In the anime series, Jigen is extremely loyal to Lupin and almost always partners up with him for a given mission. (This is not true in early chapters of the manga; later chapters more closely mirror the anime portrayal.) Despite Jigen's gruff facade, he has an ironic sense of humor and genuinely enjoys participating in each caper with partners Lupin and Goemon .His distrust of woman stems from his many failed romances (his luck with women runs from bad to worse, with love interests often betraying him or dying). He especially distrusts Fujiko and becomes irritated when Lupin goes along with one of her plans. Among Lupin's group, Jigen is the least apprehensive at taking human life. While he considers killing women and children taboo, he is willing to put down any man who offers a threat. Also, in Lupin III vs Detective Conan, he seems to dislike it when Conan Edogawa calls him "Papa". Jigen is also a heavy smoker, smoking about 60 cigarettes a day according to The Mystery of Mamo DVD booklet. A running joke in the series is that his cigarettes always end up bent out of shape. His favorite cigarettes seem to be either Marlboro Reds boxed (as in Falling Cherry Blossoms - The Mysterious Gang of Five - Part II and Lupin the Third Part 5) or Pall Mall (as in Mystery of Mamo); he's also occasionally seen smoking a briar pipe. Another recurring theme is Jigen's fear of going to the dentist. In the first episode of the second series, Jigen says that his tooth throbs whenever he gets excited or jumpy. In Crisis in Tokyo, he loses his ability to shoot straight (temporarily) from being distracted by an aching cavity he refuses to have fixed. Another fear that he has is the Iron Maiden as shown in Hot Shot: This is Fujiko. Jigen is the "big brother" of the group, and often serves as the voice of reason to Lupin's impulsiveness, as he must because of his friendship with Lupin as well as out of sheer professionalism. However, he has long since resigned himself to having to go along with the craziest of schemes. Jigen also has a rough temper and tends to become violent when someone makes an inappropriate crack. From this habit not even Lupin and Goemon are safe; though devoted to both, Jigen still has historically punched, wrestled or threatened each with violence for relatively minimal infractions, done more in a still-friends form of payback than a tie-severing injury. One example is in Castle of Cagliostro, when he wrestled Lupin to the point of the gentleman thief shouting for him to stop when he felt that Lupin was keeping secrets from him. Jigen's off-time is usually spent watching sports, fishing, gambling, practice shooting, billiards, listening to classical music and general lounging. He has a deep affection for spaghetti westerns and boxing. He's partial to American food, in particular steak, potatoes, burgers, and pizza. In $1 Money Wars, Jigen orders a Dry Manhattan cocktail instead of his usual drink, making Lupin comment on Jigen's action by calling him "homesick". As mentioned, he smokes heavily; he also enjoys drinking beer and hard liquor, usually scotch. He rarely socializes and typically stays close to home. Due to his habitual distrust of women, he doesn't tend to date unless there's a strong mutual attraction. Jigen, like the rest of the Lupin gang, is adept with disguises and can pilot virtually any motorized vehicle, including planes and tanks. He is also a tough hand-to-hand opponent, capable of knocking out an attacker with one blow.