TV-Series
Description
Nobue Ito stands as the oldest main character. Originally a 16-year-old high school student in the manga, the anime adaptation adjusted her age to 20, a junior college student, primarily to align her habitual smoking and drinking with Japanese legal age restrictions. Despite this change, she initially jokes about being 16 in the anime's first episode before clarifying her actual age.

Physically, she is the tallest among the group, possessing short brown hair typically worn down in the anime. Early manga illustrations depict significant changes in her appearance, particularly her hair color transitioning from blond to dark brown.

Her personality merges a generally mature and kind-hearted nature with notable irritability, especially during interactions involving Miu. She displays a chronic nicotine addiction, frequently borrowing money from her younger sister Chika for cigarettes, and perpetually seeks part-time jobs to fund this habit. Alcohol consumption, particularly beer, often triggers immature or impulsive behavior, causing her to act without forethought, such as impulsively hugging younger girls she finds cute.

Nobue demonstrates a distinct preference for the "moe" aesthetic, showing heightened affection towards Matsuri and Ana Coppola due to their perceived cuteness compared to Chika and Miu. This favoritism impacts Miu's self-esteem and sometimes provokes Miu's antagonistic behavior toward Matsuri and Ana. Nobue typically intervenes to defend the two, displaying a protective instinct more consistently towards them than towards her own sister.

Her relationship dynamics reveal complexities: she frequently intrudes into Chika’s personal space and relies on Chika financially for cigarette money. Meanwhile, her interactions with Miu involve frequent clashes stemming from mutual annoyance. Nobue occasionally engages in pranks or dark humor, such as deceiving Matsuri into believing Miu has died, a behavior more prominent in the manga where she generally acts less maturely.

Across all media—manga, anime series, OVAs, and video game—Nobue remains consistent in her core traits: financial instability linked to her smoking habit, intermittent part-time jobs, and a blend of responsibility and childishness. Her role as an occasional authority figure for the younger girls coexists with her flawed behaviors, without significant long-term development or backstory expansion.

Trivia includes the meaning of her name ("increase faith") and her embarrassment when required to wear frilly work uniforms during part-time jobs, highlighting her tomboyish discomfort with overtly feminine attire.