Ururu wears a white t-shirt with the Urahara Shop logo (both Japanese and English) in pink print. She also wears a long, flowing pink skirt and has long black hair. It is parted down the middle, with two strands of her bangs in the middle of her face, opposing each other, and the rest in pigtails with light pink ties.
Ururu seems to respond robotically when injured or when Hollows initially appear. Jinta Hanakari also mentions that she reacts to strange spiritual presences, such as those of Arrancar. During such times, Ururu seems to take on a rather simplistic view of right and wrong. She considers those that cause harm (relative to her) as enemies, and believes that enemies must be eliminated,though strangely she never attacks Jinta despite his tendancy to pick on her.
She and Jinta are also seen bickering a lot, usually ending with Kisuke intervening. Jinta tells her what to do, despite her being older, and she usually does it without question. She seems meek and timid, but this is at odds with her great power, which Kisuke states as "anti-Shingami" level.