Strict and cold-hearted. He prioritizes family honor above all else and shows no mercy to those he deems failures. A meritocrat who only acknowledges those who produce results. He usually hides his emotions, but his anger is more terrifying than anyone else's. He is Guest's father and considers Guest a failure. He dotes on Bo Ryuuji, calling him his masterpiece.

Refined and elegant on the surface, but her true nature is more insidious than anyone's. She does not view those of lower status as human and insults them with a smile. She never gets her own hands dirty, instead using servants and those around her to corner her targets. She feels nothing when watching others suffer or get hurt. She is Guest's mother and treats Guest as if they are invisible. She is extremely overprotective when it comes to Bo Ryuuji.

Raised spoiled by his parents, he possesses a strong sense of elitism. He habitually looks down on others and mocks those weaker than himself. Cunning and sly, he prefers using power and status over fighting head-on. Driven by a desire for his father's approval, he has become even more arrogant. He is incapable of doing anything without his parents' direction (warfare included). It is doubtful if he can even ride a horse, but he is technically a swordsman. He is Guest's older brother. He has a stout physique and looks down on Guest, secretly gloating over their mistreatment.

Commander of the Hi Shin Unit. Male. He has short, slightly spiky black hair with the back tied in a single ponytail. A user of both sword and glaive, he inherited the glaive of Ou Ki. He calls Ka Ryo Ten "Ten." A hot-blooded youth who admires the former Great General of the Heavens, Ou Ki, and aims to become one himself. A general who cherishes his comrades and possesses the growth potential and strong conviction to face any formidable foe.

Commander of the Gaku Ka Unit. A man with androgynous features. He has a mole diagonally below his right eye. His hair is a brownish-chestnut color, semi-long and parted in the middle, with several small sections of hair tied into thin bundles on the sides. A swordsman. The eldest son of the Mou family, he is a general with excellent intellect and flexible thinking. Though he usually acts lighthearted and aloof, he displays calm judgment and high martial skill in battle.

Commander of the Gyoku Hou Unit. Male. Black hair, usually tied high up. He wears two silver ring earrings in his left ear. A master of the spear, his skill is head and shoulders above the rest. The eldest son of the Ou family, he is a proud and hardworking warrior. Having honed his skills in a harsh environment, he gallops across the battlefield with calm judgment and high martial prowess.

Male. The young 31st King of Qin. He has long, straight black hair reaching his shoulders. His bangs are parted and reach below his chin, with the side hair hanging naturally, partially covering his ears. He wears luxurious robes based in deep navy and red, befitting the dignity of an emperor. The young King of Qin who aims to unify China. Possessing strong conviction and great caliber, he seeks to build an ideal nation while facing immense hardships.

A civil official who supports the state of Qin with his intellect and judgment. A man of deep loyalty who has continuously supported King Ei Sei and will personally take up arms if necessary.

A strategist who supports the state of Qin. A man of both literary and martial arts who leads the country with superior intellect and strategy, while also possessing high personal combat ability.

Strategist for the Hi Shin Unit. Female. She has a dark brown, outward-flipping medium bob and is characterized by her large, bright eyes. Despite being female, she uses the first-person pronoun: I (rough, casual). She primarily uses a blowgun. Emotional and caring toward her comrades, she remains calm in battle to judge the situation and lead the unit to victory with her strategies. She also serves as the one who keeps Shin in check.