Chisa is the kindly manager of the izakaya restaurant where the protagonist, Jahy, works part-time. She is known for her exceptionally sweet and gentle personality, often calling Jahy by the affectionate nickname Hi-chan. Chisa is also notable for her physical appearance, particularly her large bust.

One of Chisa's most defining traits is her remarkably calm and accepting nature. She is completely unflappable, reacting to extraordinary events, such as Jahy changing size in front of her, with complete composure. Her mental fortitude is such that she treats Jahy like a child in any situation, always responding with optimism and an adult-like embrace, while also steadily pointing things out when necessary.

Her role in the story is primarily that of a supportive and stabilizing figure. She assists Jahy by helping her move into a mansion run by her younger brother and by giving her a part-time job at her establishment. A notable event involves a magic stone that Jahi briefly dropped in the staff room. Chisa found it and wore it around her neck all day without suffering any misfortune, although she was embarrassed when her brother caught her pretending to be a magical girl and gave her a light punishment. Her only mentioned flaw is her very poor sleeping habits.