Karin Kanzuki

As a self-styled rival of Sakura, Karin naturally has a similar outfit, complete with sailor fuku, except hers is predominantly red and white with a blue bola tie. She stylizes her blonde hair into long, oversized Victorian Europe-style ringlets, with two small forelocks and braids encircling her head, and occasionally wears a blue bow in the back. She wears black shorts and completes her outfit with matching black socks and short, red boots. She also wears brown fingerless gloves. Her Alpha appearance became her "Nostalgia" costume in Street Fighter V. Her appearance is atypical of most Japanese characters in Street Fighter, most of whom have black and/or brown hair and eyes (with the exception of R. Mika).

In Street Fighter V, her outfit appearance has been altered from her original school uniform into a business suit-esque outfit but has still a resemblance to the original in palette and design. She wears a red long sleeve jacket with a blue frill shirt and white frill folded sleeves underneath and a white ascot tie at the center of her collar, a red frill skirt, and black tights.

Karin's laugh and mannerisms are derived from the unpleasant "ojou" stereotypes common in anime and manga as well as the "rich person"/"popular schoolgirl"/"spoiled brat"/"wealthy aristocrat" stereotypes of Western fiction; while she typically remains snobbish and haughty as per the standard, other aspects of her personality can vary wildly in other media. In Namco x Capcom, Karin is calmer, more level-headed and cynical, and serves as the voice of reason for the impulsive Sakura (though she still retains her trademark laugh and condescending comments during battle sequences). In the UDON comics, on the other hand, she is extremely hateful and competitive to the point of obsessiveness, making her much more of an antagonist. Throughout the franchise, she does retain her mannerisms and snobbiness and a habit of acting before thinking.

Typical of some rich girls in fictional media, Karin usually refers to other people as "commoners", or inferiors. She lives by her family's motto more than the rest of her family, as she takes majority control of her father's company from under his nose in a hostile takeover (ironic, since he was the one to drive that philosophy into her).

After Karin finds and eventually defeats Sakura in a rematch, she feels that she won only "by chance" and finally admits that Sakura is actually the best of them. Karin then decides to ditch her family's motto of "always winning" (at least when concerning martial arts) and starts to praise fighting itself as more important than victory or defeat, showing a bit of humility.

One of Sakura's Versus mode win quotes in the Street Fighter IV games implies that she and Karin have become friends sometime after Street Fighter Alpha 3.

In Street Fighter V, her character has somewhat changed. As new head of the Kanzuki Zaibatsu, she is proper and polite at all times, but her haughty demeanor has been replaced, to a degree, by a new respect towards her opponents, and an interest in new and unique fighting styles; while still capable of making unflattering comments towards them if they don't meet her expectations, she seems to have lived up to her previous realization that it is the challenge, not the victory, that is important. By this time, her friendship with Sakura is confirmed, although their rivalry is very much present still. It is shown in the character stories of some characters that she is truly interested in fighting and usually greet people with a fight, even when they didn't really want it, like Ibuki or Dhalsim.