Izaya Orihara is a powerful and skilled underground information broker. He usually gives information for his own enjoyment, and he claims to love the entire human race, excluding Shizuo Heiwajima. He is one of the main antagonists in Durarara!!, one of the founders of Amphisbaena and Heaven's Slave, and a member of the Dollars. Izaya has short black hair and brown eyes. He is repeatedly described as a fragile-looking, handsome man with a beautiful face by other characters in the novels. However, he is also described by the same characters as appearing mischievous or otherwise unsavory. His regular outfit consists of a black coat with brown fur lining that goes down to his hips, along with a plain black long sleeved v-neck, pants, and dark brown shoes. In the novels, he occasionally dons a longer version of his coat that reaches down to his ankles. In one OVA episode, he is shown to wear a lighter short-sleeved hoodie in warmer weather. In the manga, he goes through many variants of the same coat. They often differ in length or where the lining is, e.g. in some versions it will lack fur on the cuffs or hem. In the Izaya Orihara spin-off novels, his outfit design has changed somewhat. He now wears a light grey variant of his shirt and a long, black cape that fastens around his neck with a buckle, though he keeps this undone. The cape also comes with a fur-lined hood. Izaya claims to love humanity, although his definition of "love" is much different than one would assume. What he specifically loves about humanity is the unpredictability of human nature, and he greatly enjoys putting people in enjoyable or chaotic situations in order to observe their reactions. With a thorough understanding of human behavior and tendencies, he is able to determine people's thoughts and predict their reactions with high accuracy. Izaya is cunning and charming, but his manipulative nature prevents him from making any genuine or lasting bonds with others. He has a jolly and mocking personality, speaking informally with most people as if they are close friends and often using nicknames (such as "Shizu-chan" for Shizuo and "Dotachin" for Kyouhei Kadota). He even talks like a girl on occasion, particularly online, where he actually does pretend to be female. During conflicts, he plays on both sides so that whoever wins, he will have an advantage. He likes to play twisted versions of checkers (usually using a combination of Chess, Othello/Reversi, and Shogi pieces) with himself in his apartment, often using the chessboard as a representation of the battles in Ikebukuro, giving him the fitting appearance of one who watches over the world and controls the actions of others. The rules he plays by are also beyond normal people, which seems to be a metaphor for the way he lives his life. He does not take his chess games to be a serious representation of the world, however, as he usually prefers to observe people acting as they see fit instead of controlling them, and he even once set fire to his chess set in his excitement. Although Izaya enjoys conflict, often showing up wherever there is potential for one, he usually stays out of it, preferring to observe the fight instead of directly taking part in it. However, when provoked, he quickly puts his opponent in his place by simply proving his superiority without actually beating the other person. Therefore, he is usually seen as the one starting fights but hiding in the shadows instead of directly taking part. Volume four of the light novels shows that he is bitter when large-scale events take place in Ikebukuro without involving him. Izaya is known to be one of the strongest men in Ikebukuro, although the title of the strongest man belongs to Shizuo Heiwajima. When he needs to protect himself physically, Izaya uses a flickblade and is skilled in parkour and freerunning. Izaya likes to start fights with Shizuo and let Shizuo chase him around. When Mikado Ryuugamine first came to Ikebukuro, Izaya was one of the people Masaomi Kida warned him to stay away from, simply describing Izaya as "dangerous," while in both the original light novel series and manga, he instead confirmed that Izaya was not "dangerous" per se, but more like "unstable." He's a person most of the characters, himself included, could never trust, because they never know what he could or would do.