Chie Uru is Yui Kawa's best friend and classmate, whose family owns a flower shop. She has green hair and an extremely short temper, reacting with intense anger to provocations, especially comments about her droopy eyes. This hair-trigger response frequently leads to violent outbursts directed at the teasing Kimengumi, making her a prime target.

Despite her aggression, Chie cares deeply for Yui and demonstrates fierce loyalty, actively supporting Yui's romantic feelings for Rei. Over time, she develops tolerance and even acceptance of the Kimengumi as friends, revealing a caring nature beneath her harsh exterior.

Her characterization evolves throughout the series. Initially more outspoken, snarky, and relatively levelheaded, she gradually becomes more comically flawed and prone to slapstick humor. This shift positions her as a frequent Butt-Monkey, facing mockery from classmates, being overshadowed by Yui's popularity, and enduring embarrassing situations.

Athletically capable like Yui, Chie's performance in sports tournaments suffers due to overconfidence and lack of dedicated training, making her less reliable competitively. Her culinary skills are notably poor, earning her the label of a Lethal Chef, contrasting Yui's cooking abilities. She harbors romantic feelings for Gō Reietsu, sharing similar personality traits including a shared Hair-Trigger Temper, creating Ship Tease between them.

Her name, Uru Chie, functions as a Punny Name derived from a slang form of "urusai," reflecting her volatile nature. She consistently embodies the Tomboy role in the Tomboy and Girly Girl dynamic with Yui, characterized by her temper, violence, and perceived lack of femininity, contrasting Yui's popular, kind, pink-haired Class Princess persona. This dynamic remains consistent across the original manga, anime television series, the 1986 film, and the sequel manga Flash! Funny-face Club.