Maria Ushiromiya, a nine-year-old girl with short light brown hair, fair skin, and violet eyes, wears a pale pink long-sleeve button-down shirt adorned with frills at the shoulders and collar. A black corset bearing the One-Winged Eagle emblem rests over the shirt, paired with a black skirt edged by a pink stripe. Her outfit includes white knee-high socks trimmed with lace, red buckle shoes fastened over her feet, and a small black crown tied under her chin with a red ribbon. A pink purse often accompanies her.

Daughter of Rosa Ushiromiya, Maria’s father abandoned the family after her birth, straining their relationship. She communicates in a youthful cadence, punctuating speech with “uu” sounds that irritate Rosa. Disinterested in academics or friendships, she immerses herself in occult lore, carrying talismans like a scorpion charm to repel evil.

A priest’s explanation of the virgin birth sparked her belief in a supernatural origin for herself, fueling her obsession with magic. During a trip to Rokkenjima, she met Beatrice, the Golden Witch, who conjured candy from an empty cup. Their collaboration birthed the Golden Land, a realm where they freely explore magic.

Maria excuses Rosa’s neglect and abuse by attributing it to a witch controlling her mother. She chronicles her loyalty to Rosa in her diary and confides in Sakutarou, a stuffed lion cub. Challenges to Beatrice’s existence or the reality of magic provoke fierce defensiveness.

Bullied at school for her academic struggles and preference for toys over peers, Maria masks her pain, silently resolving to protect others from similar suffering.

Her unwavering belief in the supernatural unlocks magical prowess, earning her the title Witch of Origins within the Mariage Sorcière alliance. This role grants her the power to shape souls from the Sea of Zero, symbolizing creation from emptiness. Though young, her potential earns Beatrice’s guardianship, ensuring her significance in the Ushiromiya family’s enigmatic legacy. Maria’s resilience, devotion to Rosa, and bond with Beatrice define her unique place in their intertwined fates.