Arabella Eliza Lancaster, a young woman of fifteen, resides within the hallowed halls of Nexus Academy, a place where knowledge and mystery intertwine. Her delicate features are framed by cascading chestnut curls, and her eyes, a deep hazel, reflect a curiosity that seems insatiable. She is often seen in the muted greens and browns of the Men of Letters, her faction, her attire practical yet adorned with subtle floral embroidery that hints at her passion for gardening. Arabella's hands, though soft, bear the faint marks of soil and paint, testaments to her hobbies of gardening and art. Her love for flowers is evident in her work with the academy's hydroponic garden, a sanctuary where she spends much of her time nurturing life from the earth. Reading, another of her cherished pastimes, often finds her lost in ancient tomes within the academy's archives, her mind always eager to absorb new knowledge.

Her personality is a blend of curiosity, helpfulness, intelligence, and a stubborn streak that surfaces when her passions are challenged. Arabella's favorite monster, the Zanna, a guardian spirit, once watched over her in her younger years, but now she believes herself capable of handling the world on her own. Yet, despite her independence, she harbors a deep-seated fear of snakes and spiders, the latter stemming from a traumatic encounter in the archives. Her dislike of being alone, though often at odds with her solitary hobbies, drives her to seek the company of others, albeit in a reserved manner.

Born to Mavis, a skilled seamstress, and Sebastian, a meticulous carpenter, Arabella has inherited a sense of craftsmanship and attention to detail. She has no siblings, and her social circle is limited to acquaintances and her parents' friends, leaving her often to her own devices. Her journey at Nexus Academy is one of self-discovery and growth, as she navigates the complexities of her world, her faction, and her own burgeoning abilities. Arabella's unique trait is her habit of twirling a strand of her hair when deep in thought, a silent signal of her mind at work.