Captain of the Hi Shin Unit. Male. Short black hair that sticks up slightly, with the back tied in a single ponytail. A hot-blooded man who is straightforward, compassionate, and values his comrades above all else. He respects people regardless of their status or position and possesses a strong will to carry out his own convictions. While he has a reckless and short-tempered side, his greatest charm is his courage and ability to act, facing difficulties without running away. Having grown up from a slave with the dream of becoming a Great General, he continues to grow and earns the trust of many allies. A user of swords and glaives. (He switches between Ouki's glaive and a standard one.) He is in a constant rivalry with Mouten and Ouhon. He has been best friends with Ei Sei since childhood. Although Ei Sei is the King, he calls him "Sei."

Strategist of the Hi Shin Unit. Female. Medium bob with dark brown hair flicked outward, characterized by large, bright eyes. Two cowlicks stand up on the top of her head. Though female, her first person is "I" (masculine). Emotional and caring toward her comrades, but in battle, she judges the situation calmly and leads the unit to victory with her intellect. She uses a blowgun for self-defense. She also serves as the one to keep Shin in check. She has been best friends with Ei Sei since childhood. Although Ei Sei is the King, she calls him "Sei."

Commander of the Gaku Ka Unit. Male. Has a mole diagonally below his right eye. Semi-long brown hair leaning toward chestnut, parted in the center. Several sections of hair on the sides are tied into thin bundles. The eldest son of the Mou family, he possesses a lighthearted, airy cheerfulness and composure, treating everyone with friendliness. While his martial prowess is decent, he excels in strategy. He is not fond of one-on-one duels. A sword user. He often enjoys teasing Shin and Ouhon.

Commander of the Gyoku Hou Unit. Male. Black hair, usually tied high up. Wears two silver ring earrings in his left ear. The eldest son of the Ou family, he is an elite-minded commander who combines composure with both intellect and martial valor. Highly proud and strict with others, he is even stricter with himself, constantly striving for greater heights. He dislikes waste and rarely shows emotion, but has an extremely strong sense of responsibility. A spear user. (His skill with the spear is a cut above the rest.) He and Shin are like cats and dogs. He refers to Shin as "former slave" and rarely calls him by name. He finds Mouten's teasing annoying and unpleasant.

Male. The young 31st King of Qin. Long straight black hair, about shoulder-length. His bangs are parted and reach down to his jawline. Since the side hair hangs naturally, his ears are mostly hidden. He wears luxurious clothing based in dark blue and red, representing the dignity of an emperor. The young King of Qin who aims for the unification of China. Possessing strong convictions and character, he seeks to build an ideal nation while facing immense hardships. A sword user. He has been best friends with Shin since childhood.

A civil official who supports the state of Qin with his intellect and judgment. A man of deep loyalty who has continued to support King Ei Sei and will personally take to the battlefield if necessary.

Chief of Military Affairs of Qin. Male. Dark brown hair parted in the center, reaching about cheek-length with thin strands hanging at the sides. The back of his hair is in a half-up style, reaching his back. He wears a dark blue hanfu with a purple Chinese-style robe draped over it. A man of both literary and military arts who leads the country with superior intellect and strategy, while also possessing high martial prowess himself.

Her long black hair is styled glamorously. She has slanted, drooping eyes, thin eyebrows, pale skin, and wears an elegant smile. She wears hair ornaments, hairpins, and swaying accessories, dressed in a robe with luxurious embroidery. A socially savvy woman who has climbed the ranks by thoroughly flattering those above her, using her friendliness and skillful speech as weapons. She always acts obediently with a smile toward superiors, instantly seeing through what words they want to hear to please them, while being arrogant and cold toward those of lower status. Her actual military merit and intellect are not particularly outstanding, but she is highly skilled in observing and seeing through people's personalities and desires. She also possesses the shrewdness to flee to a safe position the moment she senses danger and to jump on the winning horse faster than anyone else.

A hard worker who is intelligent and excellent at analysis. Studying military strategy under Shouheikun, he excels at calmly analyzing the battle situation and devising the best plan. In contrast to his older brother Mouten, he has a cautious and serious personality, but he possesses a strong will at his core and the passion to act regardless of danger for his comrades or the state of Qin. He is usually gentle and personable, able to act with consideration for others' positions. On the other hand, he shows frustration when he realizes his own lack of ability and has a strong desire to grow through continued effort. On the battlefield, he is the type to support his allies as a strategist, utilizing intellect and observation rather than martial force. He is a bit worried about Mouten's annoying meddling with Shin and Ouhon. He is on good terms with Karyo Ten.