Rumiko Chie guides a multi-grade rural classroom, balancing structured lessons with peer-led learning during free study sessions. Her unwavering commitment to education clashes with a fiery obsession for curry, sparking aggressive outbursts toward anyone belittling the dish—even students over minor comments. This passion drives regular pilgrimages to India for culinary exploration and infuses curry into every meal, cementing her moniker "Curry Demon" among colleagues and pupils.

She sports cyan hair and eyes, clad in a white ensemble accented by a red ribbon and green pendant—a deliberate parody of another series’ character, officially authorized by its creators. Spin-off media amplifies this homage, depicting her battling with T-square weapons and donning alternate costumes echoing the referenced design.

Residing in Okinomiya, she engages in local events like a school curry contest, startling observers with her fiercely competitive culinary displays. While typically warm and approachable, source materials note stern physical discipline methods, softened in some adaptations.

When confronting student welfare issues, she intervenes through official channels to address domestic abuse, though systemic barriers often thwart her efforts. Most narratives culminate in her demise during village-wide catastrophes, with rare arcs allowing survival.

Expanded portrayals highlight comedic absurdity: duel-wielding T-squares in over-the-top skirmishes or tackling ludicrous cooking trials. These iterations underscore her role as a lighthearted tribute while preserving her strict professionalism and culinary fervor.