Alice takes pride in being “Noir’s adorable sister” and displays a strong brother complex, marked by possessiveness and protectiveness toward him. Despite her popularity among the opposite sex, she shows no romantic interest in anyone other than Noir. Her attachment is so intense that she can sense when he is spending time with another girl, even from a distance, and her jealousy can be palpable sometimes manifesting as an almost tangible murderous aura.

In contrast, Alice openly dislikes her other older brother, Gillan Stardia, dismissing interactions with him as “a waste of life, not just time.” Her feelings toward her eldest brother remain unclear.

Alice is depicted as a beautiful young girl with black hair and black eyes. Her outfit consists of a white puff-sleeved blouse accented with gold stripes, paired with a red ascot and a black patent vest adorned with gold patches and buttons. She wears a black short skirt over a white petticoat, along with white cotton stockings and black Mary Jane shoes, completing her refined and elegant look.

Alice is the youngest member of the Stardia household and the younger sister of Noir Stardia. Gifted with exceptional intellect, she consistently achieves the highest grades in her school with minimal effort, earning a reputation as a prodigy.

Noir Stardia
Alice harbors deep romantic and physical attraction toward her younger brother, desiring a relationship that goes beyond sibling bonds. While Noir is aware of her feelings, he attempts to ignore them, though he clearly enjoys her physical affection. She is highly possessive and protective of him, often becoming intensely jealous. On one occasion, she challenged him to a “duel” with a sword after witnessing him in an intimate moment with other girls. Alice is deeply concerned for Noir’s safety and dislikes seeing him place himself in danger, frequently imagining both romantic and sexual scenarios involving him.

Gillan Stardia
In stark contrast to her adoration for Noir, Alice openly despises her older brother, Gillan, declaring that meeting him is “a waste of life, not just time.”

Emma Brightness
Alice appears to view Emma as a romantic rival for Noir’s attention. On one occasion, she threatened Emma when she went to Noir’s room, implying she might attack her. Whether this was a joke or a genuine warning remains unclear.

The given name Alice is of Old French and Germanic origin, derived from Adalheidis, meaning “noble” or “of noble kind.” Her surname, Stardia (スタルディア), has no confirmed meaning but may be a constructed fantasy name, potentially combining “star” and “dia” (from “diamond”), evoking imagery of brilliance or prestige. In Japanese, her name is written as アリス・スタルディア (Arisu Sutarudia) using katakana, which is typically employed for foreign or fantastical names.