Miyabi, a third-year student and leader of the Elite Class at Hebijo Clandestine Girls' Academy, possesses white hair, piercing yellow eyes, and a light tan, often presenting a boyish look. Her distinctive attire features a cape over a white and yellow coat accented by a burgundy sash, thigh-high stockings, boots, and an Impossibly Low Neckline. Her Abyssal Form transforms her dramatically, granting six black-and-white wings, black hair with a white streak, red eyes, and a facial tattoo. A childhood trauma defines her past: witnessing her mother killed by a youma during an outing with her friend Imu. This drove Miyabi to master forbidden ninja arts for vengeance. Years later, during a mission, she unleashed the Anathematic Ninja Art "Blood Riot" against youma but lost control. The backlash left her in a three-year vegetative state with memory loss. She survived alongside Imu, but the incident claimed others, including Ryōki. Awakening amidst Hebijo's destruction, Miyabi spearheaded its reconstruction, initially manipulated by Dōgen to target Homura's Crimson Squad before rejecting his influence. Characterized by fierce pride and seriousness, Miyabi maintains a near-constant stern demeanor, rarely smiling beyond confident smirks. Her manly conduct fuels frustration over being perceived as masculine rather than feminine. Despite her no-nonsense exterior, she exhibits deep loyalty, especially towards Imu, her childhood friend whom she once loved romantically before her memory loss. This care extends to her team, though her obsession with eradicating youma can manifest as ruthless single-mindedness. In combat, she wields a seven-pronged sword and commands black flames. Key techniques include "Delightful Inferno" for close-range unblockable slashes and "Purgatorio of Good and Evil," summoning snakes for area attacks. Her Abyssal Form enhances her powers, adding techniques like "Madness Impératrice" and "Divine Judgement," alongside magic spells such as "Aionion Petrosis" causing permanent petrification and "Stone Snake" for earth manipulation. Her immense strength, speed, and durability reflect years of rigorous training. Her journey spans pivotal conflicts. After Hebijo dissolved following the First Shinobi Great War, she formed the independent team Shiroki Tsubasa ("White Wings") to combat global youma threats. During the Second Shinobi Great War, grief over allies' deaths drove her to insanity, leading to violent actions against Ryōbi and Ryōna. Post-war remorse prompted her retirement from active duty. She became a teacher at Academy City alongside Yumi, mentoring new generations to atone for past deeds. In later years, her hair grew longer, turned black naturally, and she wore an eyepatch over a battle injury. Her story explores gender identity through others' perceptions: despite her feminine physique, her short hair, deep voice, and demeanor lead characters like Shiki to treat her as an "ice-cool smokin' hot guy." Miyabi actively wrestles with this dissonance, seeking advice on being seen as a woman and reacting angrily when matchmade with female admirers. Stories like her Shinobi Girl's Heart arc highlight her internal conflict between embracing femininity and maintaining her authentic self.