Awakening from extended stasis with complete amnesia, Noir knows nothing of her origins or identity. Her consciousness traces back to Historie, sparked by contact from Mystere and Pascale. Discovered within remote ruins by Kanata, she emerges as a Magus—an artificial intelligence combat android designed to assist human pilots called Drifters. She possesses a petite, slender frame. Her distinctive white hair falls in a neck-length cut, featuring a longer ponytail at the back. Red or pink eyes often hold a blank, clueless stare reflecting her memory loss. She typically wears a short white dress paired with black tights and an oversized work jacket worn loosely, a sign of her inability to manage clothing. Despite her memory impairment, inherent kindness drives her to care for allies and occasionally enemies. Initial interactions reveal clumsiness and social naivety stemming from her condition. Contact with other Maguses like Ada and Alba triggers an inferiority complex, intensifying her emotional development. This fuels visible expressions of vulnerability and a fierce determination to prove her worth to Kanata. Her combat capabilities starkly contrast her social awkwardness. Though initially dismissed as a malfunctioning "dud Magus," she demonstrates exceptional proficiency in piloting support during battles against the Enders—hostile creatures inhabiting the post-apocalyptic surface world. Specific abilities include Target Lock, Anticipation mod, and the accidental activation of "Lightning" during combat, making her invaluable against these monsters. She forms a primary partnership with Kanata, recognizing him as her master upon awakening. This bond deepens as they pursue shared objectives: uncovering her past and locating the mythical city of Histoire, central to the world's mysteries. Her status as a "Type Zero Magus" prototype makes her a target for factions like Ideal, an organization seeking to eliminate Maguses. Antagonists such as Weisheit Blaurecht pursue her due to her connection to Histoire and her role in opposing his vision of a human-only future. Her journey involves reconciling fragmented aspects of her identity. Investigations reveal her significance to the Magus lineage and the secrets of Histoire, forcing her to confront her origins while protecting newfound relationships. Risks taken by allies to repair or restore her functionality underscore her pivotal role in thwarting existential threats against synthetic and human coexistence.