Hibari Torii once commanded respect as matriarch of the Torii Group, revered for her leadership and personal strength. After the yakuza clan dissolved, she transitioned to grocery store employment to sustain herself and her former subordinates, who followed her into this new work. Adapting from a life of being served to one of service proved challenging despite her dignified efforts.

Her appearance reflects tradition: brown hair pinned back, features highlighted by classic red lip tint, and attire typically featuring a dark maroon kimono with floral patterns along sleeves and hem, secured by a purple obi sash.

She carries residual authority and grace from her past role but visibly flusters when facing mistakes or the demands of her service job. Her interactions with protagonist Tatsu maintain mutual respect despite differing circumstances.

Season 2 reveals her fondness for cats through a cat cafe visit and an attempt at needle felting a cat model. After initial failure, Tatsu assists her in completing the project.

In the live-action adaptation, her background expands via Composite Character treatment: she marries Tatsu’s former boss, Kikujiro Eguchi, adopting the surname Eguchi. This integrates manga elements, adding layers to her post-yakuza relationships.

Her name’s etymology holds symbolism—"Hibari" meaning "skylark," and "Torii" combining characters for "rooster" and "well/mine shaft." The live-action surname "Eguchi" signifies "bay/inlet" and "mouth/entrance."

Her established traits and scenarios remain consistent without significant development across all media.