Isolde Caeso

Isolde Caeso works as a librarian in the Limited District of Sterling Metropolis. She is also the single mother of Felix Caeso.

Appearance
Isolde is a fair-skinned woman. She has storm blue eyes and black hair worn in a high bun held by a blue ribbon. She is almost always seen wearing an unimpressed or emotionless expression.

She wears a white long-sleeved button-up with a black ribbon tie tucked into a dark blue, high-waisted pencil skirt with buttons down the front-right side, paired with black tights and backless, black dress shoes.

Personality
Isolde is a cold, reserved woman. She is rarely seen interacting with others, seeming to prefer being surrounded by books. Even at work, she speaks very little and with a clipped tone, giving off an aloof, no-nonsense attitude. Despite this, she excels at her work. She has an incredible memory and knack for organization, which helps immensely with the vast amount of books she caretakes.

She appears to have difficulty connecting with people, especially regarding her son, Felix. At many points she's shown interest in interacting with him, but hesitates each time and decides against it. As a result of this confliction, the two of them are rather distant by the start of the story.

Characteristics
Exceptional Memory: She's shown many times to have near-photographic memory, such as being able to find a very specific book in the vast library in which she works without expending any effort. She has also memorized each street she has walked down, even down to the most minute detail, and can relay that back to other people to give very clear directions.

Felix Caeso
She at first appears to be very cold and distant towards Felix. She rarely speaks to him and seemingly ignores him whenever he tries to talk to her about his day.