Oriana Thomson, a magician and mercenary from England, was raised in a Christian family who shared her faith. She served as a devout nun in the Roman Catholic Church, regularly performing humanitarian acts. A pivotal event occurred when she assisted elderly Emily Laughton onto a bus that later exploded in a terrorist attack, killing the woman. This tragedy profoundly shook Oriana's faith, leading to her departure from the Church and eventual turn to magic. After leaving the Church, she became a mercenary, earning the moniker "Route Disturb" as a top courier in the magical world. The title reflects her exceptional ability to evade pursuers through any means necessary, including causing collateral damage like destroying bridges or setting fires, and her reputation for never using the same spell twice. Her extensive knowledge of pursuit and tracking magic, gained from understanding how to counter such tactics, also makes her highly skilled at locating others. Physically, she is a tall young woman with blonde hair and blue eyes, often allowing her hair to cover her right eye. Her attire initially consisted of revealing gray work clothes exposing her midriff and cleavage, though she later adopted a gypsy skirt and a small dark purple cloth or tube top covering her chest. Her figure, particularly her large breasts, is frequently noted as a distracting feature. Her personality blends pragmatism with a protective instinct. She readily employs her attractive appearance and flirtatious demeanor to manipulate men, create diversions using crowds, and facilitate escapes. Despite these tactics, she actively avoids involving civilians in magical conflicts and expresses genuine regret when bystanders are unintentionally harmed. She possesses a playful, teasing side, often adopting an older-sisterly demeanor. Her core motivation stems from a desire to achieve lasting world peace through clear, unambiguous rules, believing this justifies working with any faction, regardless of their methods, if they can guarantee this outcome. Her magical abilities center around a unique system called "Shorthand." This involves creating temporary, single-use grimoires by writing spells on flashcards using incompatible colors for the elemental symbols (Wind, Water, Fire, Earth). These "Shorthand Originals" self-destruct after activation, lasting from seconds to an hour, and cannot be reused. This method prevents opponents from predicting her spells but limits her to constantly creating new ones. Her spell repertoire is diverse, including evasion techniques like "Silent Coin" (which dampens pursuers' urge to chase), communication spells, elemental attacks like "Blade Crater" (which unleashes hundreds of vacuum blades), barriers, counter-spells, and non-lethal takedowns like "Drop Rest." She also demonstrates proficiency in close-quarters combat, utilizing distracting, seductive stances. Her chronological story begins during the Daihasei Festival in Academy City. Hired by Roman Orthodox Church agent Lidvia Lorenzetti, her mission is to transport and activate the Croce di Pietro artifact within the city. During this operation, she encounters Touma Kamijou, who disrupts her "Silent Coin" spell. Pursued by Touma, Stiyl Magnus, and Motoharu Tsuchimikado, she sets traps that inadvertently severely injure bystanders Seiri Fukiyose and Aisa Himegami, expressing regret for the latter. Her final confrontation occurs in District 23 against Touma and Stiyl, where she is ultimately defeated and captured by the English Puritan Church. Following her capture, she brokers a deal with Necessarius, the Anglican Church's magical arm, defecting to their side. This shift is motivated by her desire to protect people during the escalating tensions between Academy City and the Roman Orthodox Church. Her change in allegiance is noted during the Document of Constantine Arc, where Stiyl Magnus informs Lidvia that Oriana now works for the Anglicans to help the weak, a revelation that influences Lidvia's cooperation. She reappears actively working for Necessarius during the British Royal Family Arc. Partnered with Touma Kamijou, they investigate the terrorist group New Light across London. She demonstrates her tracking skills, deduces their movements using city blind spots, and actively participates in confrontations, utilizing spells like a "people-clearing field" and fire magic during a car chase with the New Light member Lessar. She advises Touma on escape routes during the ensuing chaos caused by the knights' uprising and engages Sherry Cromwell's golem near the River Thames.