Karyō Ten, originally a young girl disguising herself as a boy, hailed from the Kyuumei Tribe, a mountain people largely destroyed years earlier in conflicts with Yo Tan Wa's forces. Orphaned at age five after her grandfather's death, she survived alone in Kokuhi Village by working as a lookout for local thugs. She leveraged her observational skills to identify targets in exchange for protection and resources, guided by her grandfather's final words emphasizing survival through cunning over strength and concealing her gender if necessary. Her life changed upon encountering the war orphan Shin and the Qin king Ei Sei during their flight from Sei Kyou's rebellion. Initially attempting to betray them to bandits for profit, she later negotiated rewards and aided their escape, entangling her in the struggle for Qin's throne. During the rebellion's climax, she survived a stab wound due to hidden chainmail armor, revealing her true gender to allies like Heki. After the conflict, Bajio identified her as Kyuumei and offered integration with Yo Tan Wa's tribes, but Ten declined, feeling disconnected from mountain life after years on the plains. Choosing to remain with Shin, she initially managed domestic tasks but grew restless during peacetime. Witnessing Shin and Kyou Kai's combat prowess during an assassination attempt on Ei Sei, she recognized her inability to contribute physically. Kyou Kai advised her to become a strategist, providing a recommendation to Shou Hei Kun's Strategist Academy. There, she trained under mentors including Shou Hei Kun, Kai Oku, and Mou Ki, quickly rising to prominence. Her analytical skills rivaled top student Mou Ki in simulations, earning special recognition alongside future general Mou Ten. Graduating with top honors, she returned to the Hi Shin Unit during a period of tactical decline following Kyou Kai's temporary departure. Her leadership and strategic acumen immediately reversed their fortunes, exemplified by quelling the Risei region in ten days. As chief strategist, she transformed the unit into a highly mobile and adaptable force, integral to its evolution from a 1000-man unit to a 5000-strong elite army. Her tactics frequently combined conventional formations with unorthodox maneuvers, such as the "Hi Shin Unit-Style River Bridge" at Kokuyou Hills, which exploited terrain deemed impassable by enemies and allies alike, including veteran generals like Shou Hei Kun. Key battles highlighted her development: during the Sanyou campaign, she reorganized scattered forces and outmaneuvered the Wei strategist Hyou Ki; at Kankoku Pass, she rallied dispersed troops under extreme duress; and in the Wei invasion, captured by Jun Sou, she confronted General Gai Mou with unwavering resolve, declaring her desire to support Shin's dream of unification. Her strategies often involved multi-layered diversions, psychological warfare, and rapid adaptation, such as modifying the Hourai formation to pressure the Ai army or coordinating the Drill Formation with the Gaku Ka army to escape Ri Boku's encirclement at Gian. Physically, Ten evolved from a tomboyish child with short hair—often mistaken for a boy—into a recognized woman with shoulder-length hair and a more feminine stature post-Coalition War. She consistently wore a zigzag-collared tunic, armbands, and brown boots, later adding a commander's cape as her rank increased. Her Kyuumei owl mask remained attached to her signature straw poncho, symbolizing tribal heritage. Personality-wise, her survivalist upbringing fostered keen perception, tenacity, and logistical intuition, managing unit supplies alongside tactics. She exhibited vulnerability, such as fear after sparing enemy commander Kaine during the Battle of Sai, but balanced compassion with pragmatism in command decisions. Her primary motivation centered on supporting Shin's rise to "Greatest General under the Heavens," with implied deeper feelings beyond their adoptive sibling bond. In terms of abilities, Ten possessed exceptional intelligence (rated 90+) and leadership (87+), with strengths in tactical elaboration, memory, and long-range reconnaissance. She mastered military formations like the Wedge and Drill, often modifying them for specific terrains or objectives. Though lacking martial prowess, she endured significant physical trauma, including arrow wounds and imprisonment, and utilized a blowgun with numbing darts for defense. Her weaknesses centered on direct combat limitations, requiring protection during frontline engagements. By current events, she remains the Hi Shin Unit's indispensable strategist, participating in every major campaign toward Qin's unification goal.