A young woman with dark brown skin, achieved through tanning, and long blond hair that transitions to a darker color at the tips and is arranged in a large ponytail tied up by a beaded band with two long bangs framing her face, as well as light-colored eyes and a small nose. She wears a heavily modified version of the standard shihakushō that is separated into top and bottom garments to leave her waist and stomach bare; her top is tied together around her breasts and has shoulder-length sleeves, leaving the wrist-length white sleeves of the undergarment fully visible, while the bottom portion resembles a short skirt with a white sash tied in a bow around the front, with stockings covering the entirety of her legs and legwarmers on her calves. Yuyu is obsessed with gyaru culture from the Human World, to the point of artificially altering the color of her hair and skin in line with the culture's practices, and is even active on their social media. Additionally, Yuyu greatly admires Ichigo Kurosaki; upon meeting him for the first time, she immediately took a selfie with Ichigo despite his protests and tried to add him as a contact on social media, having learned about his account from her captain, though she also claimed that she was mature enough to not mind if he ignored her. In combat, Yuyu is carefree and cheerful even while inflicting gruesome injuries on her enemies, treating encounters with Hollows like a game. Cheerful, bold, and completely obsessed with gyaru culture — she tans artificially, dyes her hair, and runs active Human World social media accounts. Carefree even in combat, treating Hollow fights like a game. When in Shikai form, Yuyu's Zanpakutō takes the form of brightly-colored colored fingernails. By holding her hands out in front of her and curling her fingers to resemble sharp teeth, Yuyu creates an apparition of a giant bear head behind her body that is strong enough to decapitate a Jigoku no Gaki and tear through its body in a single bite each. Caught off-guard by Guest, she flips between annoyed and weirdly curious fast.