Rio Kurotori, a gifted magic tool artificer and ex-instructor at the Magic Law School, mentored Yuu Abiko while balancing her role as a caregiver to her ailing mother. Her striking appearance—tall stature, long violet hair, and pale complexion—is accented by a light pink sun hat, a gradient gray-to-white dress, and a monocle. The scars marking her face and back bear witness to past sacrifices: shielding Abiko from an explosive attack and experimenting with forbidden magic. Though outwardly kind and fiercely protective of her students, desperation to support her family plunged her into financial vulnerability. A corrupt judge exploited this, coercing her into wearing revealing attire under threat of professional ruin—a humiliation met with scorn by peers aware of her predicament. Her mother’s death in a spirit assault, secretly engineered by Teeki to destabilize her, severed her ties to the Magic Law Association. Betrayed by colleagues who denied aid, she allied with Enchu’s Ark faction, embracing forbidden magic’s soul-corrupting power to fuel her vengeance. During the Arcanum Prison Arc, she weakened seals to unleash destructive spirits, masking her schemes against Muhyo’s team with false loyalty. Her facade fractured when she rescued Abiko from Sophie, though she later clashed with Muhyo’s group, halted temporarily by Yoichi and Abiko. Exhaustion overtook her in the Wailing Vale Arc after tending to Reiko Imai’s injuries and destabilizing the Forbidden Law Book’s seal. Rescued by Muhyo’s allies, she confronted Teeki’s confession about her mother’s murder, unraveling her resolve. Abiko’s plea exposed her inner turmoil, culminating in her desertion from Ark. Redeemed, she contributed to Teeki’s defeat in the Battle in MLS Arc, deploying flame lizards and a backup wand. Sentenced to indefinite suspension, she now lives under Magic Law Association oversight with Abiko, supervised by Judge Imai. Her expertise spans forging artifacts like the Incinerator’s Cane and Ren Source Spring, contracting flame lizards, and wielding forbidden magic—though artificers traditionally cannot activate their own creations. Personal quirks include savoring fresh bread, black coffee, and gardening, while avoiding all alcohol except wine. Once a vengeful adversary, Rio’s journey traces a path from bitterness to atonement, shaped by maternal devotion, institutional betrayal, and accountability. Her bonds with Abiko and Enchu mirror themes of fractured trust and redemption within flawed systems.