Unchou Kan'u, a third-year Seito Academy student, serves as the steadfast guardian of student council president Gentoku Ryuubi. Inheriting the mantle of Guan Yu, she bears the title "Goddess of War," wielding the Blue Dragon Crescent Blade and the legendary Kusanagi sword. Her A-rank combat status and formidable chi render her one of Kanto’s most revered warriors. Towering in stature with tan skin and piercing blue-grey eyes, she possesses cascading dark-purple hair reaching her ankles, often swept to conceal her left eye. Her signature Seito uniform—a white sailor blouse, navy skirt, and loose socks—accentuates her imposing presence. During her temporary alliance with Kyosho, she dons a darker, more provocative outfit reflecting her strategic shift in allegiances. Kan'u’s unwavering loyalty to Gentoku defines her existence, repeatedly sacrificing her safety to shield the president. She permits her own capture by Kyosho to thwart threats against Gentoku and later surrenders to prevent collateral harm. Though confident in battle, she retreats from the Great Fighters Tournament when injuries compromise her effectiveness. Unspoken romantic feelings for Gentoku emerge in adaptations, yet she suppresses them, clinging to her self-imposed role as protector. Her combat legacy spans decisive victories against foes like Shimei Ryomou and Hakufu Sonsaku, the latter bested even in a demonic frenzy despite Kan'u’s wounded arm. Subsequent clashes with Genchoku Jousho and Koumei Jokou oscillate between defeat and triumph, underscoring her tenacity. Allying with Kyosho’s Sousou strategically safeguards Gentoku, though Kan'u cautions him against endangering her true charge. Growth surfaces as she confronts her hubris in believing herself Gentoku’s sole defender, eventually acknowledging Koumei Shokatsuryou’s contributions to the president’s development. A self-imposed exile from Seito allows Gentoku’s leadership to mature, yet Kan'u resurges during crises like the Battle of Red Cliffs, toppling adversaries to secure an alliance victory. Her arc concludes by balancing dutiful guardianship with respect for Gentoku’s autonomy. Kan'u’s resilience shines during Kyosho captivity, enduring psychological torment and Sousou’s soul-draining techniques while covertly retaining strength to break physical bonds. Subtle narrative threads trace her struggle to harmonize her fated martyrdom with the resolve to survive, ensuring her continued role as Gentoku’s shield.