Clothes: Fitted, stylish, classy. It's not often that he will be seen without his trademark jacket, though it should be noted that he does vary between green and red depending on his mood. The red jacket dominates, and is part of his iconic image. Otherwise, he predominantly wears the full suit get up with a yellow tie, all of it always clean falling straight unless he's been on a job for the last several days.
The only times he won't be spotted in his suit is when the ocassion calls for it. In those circumstances, he will dress for the event. As a thief, he loves his disguises and costumes. He will literally go for any look that is called for, if it can be done. It isn't unusual for him to be seen with glasses, though he wears them mostly for dramatic effect rather than actual function. Glasses lend him a quiet, academic presence, he thinks.
Of note: Lupin's wings are not kept out in the open. He keeps them tucked underneath his clothing. Additionally, he always wears his semi-automatic sidearm, a Walther P-38, on a shoulder harness directly underneath his suit jacket. Though he's borderline ambidextrous, he still favors his right hand. As such, the gun is holstered on the left shoulder.
His shoes might also be of note. They're black leather, with soft soles. They're clean, unless he's been out on a job
I have image references on my profile page if you believe that they will be helpful.
Grooming/Hygiene: Showers daily with soap and shampoo that's cheap but has a minimum of fragrances. In his trade, any little thing can be a detriment. This includes heavy scented soaps. His fingernails are likewise trimmed and clean, he's always clean shaven. He wears no jewelry to speak of.
Notable is the fact that his hands are callused from handling lockpicks on a regular basis. He's also very deft and quick, and is capable of minor feats of sleight of hand or pick pocketing, though he keeps that to a minimum in Luceti.
Hair: NOT close cropped, but slicked back a la Humphrey Bogart in Casablanca. It's thick and black, and would likely have a wave to it if he let it grow out. His shampoo is similarly cheap and low fragrance, and he uses a light scented pomade to keep it back. The attempts don't always work.
Health Issues: None, really. He's quite healthy, but avoids octopi and squid like the plague. This is because he's more than a little allergic to them--even touching one is enough to get him sick, he says. We haven't seen this in action to be certain.
Appearance: He stands at 5'10", and is very thin and lanky. He doesn't have much muscle mass, but he is strong enough and flexible enough to perform minor acrobatic feats--or scratch his head with his toes. He can get out of almost any binding, given enough time.
Ever a cocky and confident man, he stands straight and projects his ego as he's out and about. He's quick to smile, even quicker to tell a joke, but really doesn't like standing still. When he's with his friends, or when he thinks no one is watching, he does have a habit of lounging on various chairs/sofas, though he's not nearly as notorious for it as his friend Jigen.
Otherwise, on the off chance that the two end up meeting at a pool (one of the few ocassions where Lupin's wings will be exposed and he won't be in his suit) he'll likely be seen in a speedo or a classic one from the late 1800s. You know the one, it looks really dorky. His wings are red, for reference, and he keeps them covered becauuse he doesn't like the constant reminder of the one prison he's going to have a hell of a hard time breaking out of.
Additionally, he has various scars on his body, namely a bullet scar on his abdomen, another on his shoulder, and another on his other shoulder from an arrow.
It's best not to ask.
Habits/Hobbies: Lupin is a smoker, and has been smoking more since entering Luceti than he has in recent years. His favored brand is an unusual French one, Gitanes, but they're hard to find outside of France normally. He's yet to find them in Luceti
The brand he's been using lately has been the same as his long time buddy, Jigen: Pall Malls.
He also maintains bizaare sleeping habits, normally culminating in him just crashing whenever and, if at a friend's house, where ever. The homes of his friends are more interesting than his, so he just makes himself at home.
Otherwise, he likes his coffee, he likes his alcohol, and he likes a great many, many things. He's not picky about what he eats.
Of late, in Luceti, he's taken to training nightly with Captain Smoker, mostly as a means of making sure he doesn't get his behind handed to him in a fight. He's fast and clever, but not a trained fighter. If he fights, it's with toys and it's very dirty. In Luceti, he's not going to have access to his toys easily, unless he gets lucky or ends up making them himself.
He's also a notorious journal stalker, does things for people without telling them, breaks into homes to drop off little gifts or wine anonymously, or has been bumming around the library. More likely than not, he knows something. Not that he will tell--he's a notorious liar too.
Important Facts: Lupin is the grandson of an infamous French thief of the same name who may or may not be fiction in your canon. Seeing Sherlock as who he is, he might not catch onto this, even if the people around him do. Additionally, he's half French and half Japanese, but is so plain looking that he can go through either country without a second glance. Culturally, he's French, though anymore he's taken to seeing the road as his home.
He's an excellent mimic, able to copy most any voice he hears with ease, and is fluent with native proficiency in French, English, and Japanese. He can also muster up passable fluency in other languages with some practice, and can copy most any accent. Normally he takes on a neutral accent--which ever one is least noticeable in his current region--but likely has a North East American accent, one that's more on the Newscaster end, in Luceti.
He also loves dating, loves women, but can't maintain a proper relationship with anyone but Mine Fujiko, who is also in Luceti. Unfortunately, that relationship is unhealthy on both ends, and it really is a miracle that they haven't killed eachother yet. That said, commitment is a big, unwanted concept. He can't do it. He loves the thrill of the adventure too much. Since she is here in Luceti, however, and Lupin doesn't have the patience for being distracted from his goals, this will be kept to a minimum.
Since the two have been hanging around each other quite a bit, it's likely that some lingering scents of Fujiko hang around him. In perfumes, she favors the classic Chanel No. 5.
He's a very open, touchy-feely guy in general who is quick to smile and quick to tell a joke. He's not honest with anyone, not even himself in many ocassions, and is extremely restless in this static environment. He's very smart, but his inability to keep still has lead to some stupid decisions already, and will likely lead to more.
Arsene Lupin III--apologies in advance for the TL;DR
The only times he won't be spotted in his suit is when the ocassion calls for it. In those circumstances, he will dress for the event. As a thief, he loves his disguises and costumes. He will literally go for any look that is called for, if it can be done. It isn't unusual for him to be seen with glasses, though he wears them mostly for dramatic effect rather than actual function. Glasses lend him a quiet, academic presence, he thinks.
Of note: Lupin's wings are not kept out in the open. He keeps them tucked underneath his clothing. Additionally, he always wears his semi-automatic sidearm, a Walther P-38, on a shoulder harness directly underneath his suit jacket. Though he's borderline ambidextrous, he still favors his right hand. As such, the gun is holstered on the left shoulder.
His shoes might also be of note. They're black leather, with soft soles. They're clean, unless he's been out on a job
I have image references on my profile page if you believe that they will be helpful.
Grooming/Hygiene: Showers daily with soap and shampoo that's cheap but has a minimum of fragrances. In his trade, any little thing can be a detriment. This includes heavy scented soaps. His fingernails are likewise trimmed and clean, he's always clean shaven. He wears no jewelry to speak of.
Notable is the fact that his hands are callused from handling lockpicks on a regular basis. He's also very deft and quick, and is capable of minor feats of sleight of hand or pick pocketing, though he keeps that to a minimum in Luceti.
Hair: NOT close cropped, but slicked back a la Humphrey Bogart in Casablanca. It's thick and black, and would likely have a wave to it if he let it grow out. His shampoo is similarly cheap and low fragrance, and he uses a light scented pomade to keep it back. The attempts don't always work.
Health Issues: None, really. He's quite healthy, but avoids octopi and squid like the plague. This is because he's more than a little allergic to them--even touching one is enough to get him sick, he says. We haven't seen this in action to be certain.
Appearance: He stands at 5'10", and is very thin and lanky. He doesn't have much muscle mass, but he is strong enough and flexible enough to perform minor acrobatic feats--or scratch his head with his toes. He can get out of almost any binding, given enough time.
Ever a cocky and confident man, he stands straight and projects his ego as he's out and about. He's quick to smile, even quicker to tell a joke, but really doesn't like standing still. When he's with his friends, or when he thinks no one is watching, he does have a habit of lounging on various chairs/sofas, though he's not nearly as notorious for it as his friend Jigen.
Otherwise, on the off chance that the two end up meeting at a pool (one of the few ocassions where Lupin's wings will be exposed and he won't be in his suit) he'll likely be seen in a speedo or a classic one from the late 1800s. You know the one, it looks really dorky. His wings are red, for reference, and he keeps them covered becauuse he doesn't like the constant reminder of the one prison he's going to have a hell of a hard time breaking out of.
Additionally, he has various scars on his body, namely a bullet scar on his abdomen, another on his shoulder, and another on his other shoulder from an arrow.
It's best not to ask.
Habits/Hobbies: Lupin is a smoker, and has been smoking more since entering Luceti than he has in recent years. His favored brand is an unusual French one, Gitanes, but they're hard to find outside of France normally. He's yet to find them in Luceti
The brand he's been using lately has been the same as his long time buddy, Jigen: Pall Malls.
He also maintains bizaare sleeping habits, normally culminating in him just crashing whenever and, if at a friend's house, where ever. The homes of his friends are more interesting than his, so he just makes himself at home.
Otherwise, he likes his coffee, he likes his alcohol, and he likes a great many, many things. He's not picky about what he eats.
Of late, in Luceti, he's taken to training nightly with Captain Smoker, mostly as a means of making sure he doesn't get his behind handed to him in a fight. He's fast and clever, but not a trained fighter. If he fights, it's with toys and it's very dirty. In Luceti, he's not going to have access to his toys easily, unless he gets lucky or ends up making them himself.
He's also a notorious journal stalker, does things for people without telling them, breaks into homes to drop off little gifts or wine anonymously, or has been bumming around the library. More likely than not, he knows something. Not that he will tell--he's a notorious liar too.
Important Facts: Lupin is the grandson of an infamous French thief of the same name who may or may not be fiction in your canon. Seeing Sherlock as who he is, he might not catch onto this, even if the people around him do. Additionally, he's half French and half Japanese, but is so plain looking that he can go through either country without a second glance. Culturally, he's French, though anymore he's taken to seeing the road as his home.
He's an excellent mimic, able to copy most any voice he hears with ease, and is fluent with native proficiency in French, English, and Japanese. He can also muster up passable fluency in other languages with some practice, and can copy most any accent. Normally he takes on a neutral accent--which ever one is least noticeable in his current region--but likely has a North East American accent, one that's more on the Newscaster end, in Luceti.
He also loves dating, loves women, but can't maintain a proper relationship with anyone but Mine Fujiko, who is also in Luceti. Unfortunately, that relationship is unhealthy on both ends, and it really is a miracle that they haven't killed eachother yet. That said, commitment is a big, unwanted concept. He can't do it. He loves the thrill of the adventure too much. Since she is here in Luceti, however, and Lupin doesn't have the patience for being distracted from his goals, this will be kept to a minimum.
Since the two have been hanging around each other quite a bit, it's likely that some lingering scents of Fujiko hang around him. In perfumes, she favors the classic Chanel No. 5.
He's a very open, touchy-feely guy in general who is quick to smile and quick to tell a joke. He's not honest with anyone, not even himself in many ocassions, and is extremely restless in this static environment. He's very smart, but his inability to keep still has lead to some stupid decisions already, and will likely lead to more.