Kaori Kanzaki is a Saint, a rare individual whose body mirrors the Son of God, granting supernatural abilities. Born with a perceived cursed blessing, her innate luck brought misfortune to those around her, especially members of the Amakusa-Style Remix of Church, where she served as Supreme Pontiff from birth. This led her to defect three years before the main events, joining Necessarius (the Church of Necessary Evil) within the Anglican Church. There, she met Index and Stiyl Magnus, forging a close friendship. She participated in Index's annual memory erasure, a painful duty she later regretted upon discovering the Church deceived her about its necessity. Physically, she stands approximately 170-176 cm tall with long black hair typically tied in a high ponytail reaching her hips. She wears a distinctive outfit: a short, knotted white T-shirt revealing her navel, asymmetrically cut dark blue jeans with one leg shortened to the thigh, and a denim jacket (often missing a sleeve later). This asymmetry functionally reinforces a small spell aiding balance and movement. She wields a two-meter-long nodachi named Shichiten Shichitou (Seven Heavens Sword). At Necessarius dormitories, she wears a flower-patterned yukata. Initially cold, taciturn, and serious—an "ice queen"—due to past trauma and guilt, her personality gradually softens. Outside combat, she embodies the Yamato Nadeshiko ideal, displaying kindness, responsibility, and deep loyalty. She struggles to express gratitude, leading to awkward interactions, particularly with Touma Kamijou, whom she feels indebted to after he saved Index and aided her reconciliation with the Amakusa. She is easily flustered, especially by Tsuchimikado Motoharu's teasing or suggestive comments, and exhibits innocence regarding sexuality. In battle, her demeanor shifts to samurai-like intensity. A defining quirk is her profound technological ineptitude; she forms a comical attachment to a washing machine she considers a "friend" and prioritizes saving alongside her pet tropical fish during evacuations. To manage stress, she stacks tiles and karate-chops them, a habit primarily triggered by Tsuchimikado. As one of roughly twenty global Saints, she possesses superhuman physical capabilities: strength sufficient to throw multi-ton objects or defeat groups effortlessly, supersonic speed, immense durability, enhanced senses (8.0 visual acuity allowing identification at 600 meters), and a form of "Absolute Luck" ensuring survival in dire situations. Her magic name is "Salvare000" ("Be the salvation of those who cannot be saved"). Her combat style blends Amakusa-Style Remix of Church techniques—a unique fusion of Christian, Shinto, and Buddhist magic developed by hidden Christians (Kakure Kirishitan)—with Western magic learned from Necessarius. Key abilities include: - **Wire Techniques (Nanasen):** Manipulates seven near-invisible steel wires to slice enemies, create three-dimensional magic circles for barriers (capable of shielding areas like Buckingham Palace from missiles), unleash elemental attacks (red lotus flames, ice spells), communicate, track, redirect magical attacks, and form analysis ribbons. - **Sword Techniques:** Primarily uses Shichiten Shichitou. "Yuisen" (Single Flash) infuses the blade with concentrated magic to harm divine beings like angels, but is taxing and reserved for decisive kills. "Breaker of God" enhances her body through a unique breathing method, placing significant strain. - **Stigma:** Harnesses divine power for spells like "St. Peter’s Interception Spell" (anti-flight) and healing magic based on resurrection feats. - **Other Magic:** Can deploy "Opila" runes or "Boundary of Forbidden Wires" to create people-clearing fields, use tracking charms, and switch between religious magic systems tactically. Her relationships drive her development. She feels profound protectiveness and guilt towards Index, stemming from their shared past and her role in the memory erasures. With Stiyl Magnus, she shares a partnership forged in Necessarius and mutual grief over Index. She eventually returns to lead the Amakusa-Style Remix of Church, feeling lingering attachment and responsibility towards them. She develops deep gratitude and an unspoken romantic interest in Touma Kamijou after he challenges her worldview and aids her reconciliation, often seeking awkward ways to repay him. Itsuwa, a junior Amakusa member, admires her but also sees her as a rival for Touma's affection. She maintains a complex dynamic with Tsuchimikado Motoharu, who taught her English; he frequently manipulates her into troublesome situations, addressing her humorously as "Nee-chin". Her story involves global missions. She initially confronts Touma to retrieve Index, but his defiance challenges her perspective, leading her to spare him and later assist him during the Angel Fall incident, where she fought the Archangel Gabriel to buy time. She undertakes operations within Academy City, such as investigating threats to its mint bureau, clashing with figures like Sasha Kreutzev and Misaka Mikoto due to misunderstandings. She also pursues targets like the restraint craftsman Ellasone. Her overwhelming power often resolves battles swiftly, though narrative constraints sometimes sideline her. Her arc focuses on overcoming guilt, embracing leadership of the Amakusa, and protecting those close to her, balancing immense power with personal vulnerability and a growing capacity for emotional connection.