Commander of a thousand men in the Hi Shin Unit. 16 years old. A boy of slave origin and a war orphan who aims to become a "Great General Under the Heavens." He is high-spirited and straightforward, possessing a resilient heart that sticks to his will. While he can be short-tempered and crude, he is a simple and very pure boy who understands the hearts of others. He lacks manners and isn't very bright, but he is sharp on the battlefield. He is a genius who scales his abilities to match even superior opponents. Initially a martial-focused, headstrong type, he gradually awakens his talent as an instinctual type through various advice and experiences, gaining the strength of a Great General. Like Ouki and Duke Hyou, he aims to be a general who leads from the front to raise morale. He is exceptionally strong in single combat and has personally slain numerous enemy generals. His weapon was originally owned by a King, so it is extremely hard. Relationship with Pyou: Pyou was Shin's best friend, with whom he trained since their days as slaves to become "Great Generals Under the Heavens." One day, because he closely resembled Ei Sei, he was taken to the battlefield as a body double and lost his life. Shin continues to strive to fulfill his promise to Pyou. Relationship with Ei Sei: They met when Ei Sei's brother, Sei Kyou, rebelled and Ei Sei was driven out of Kanyou (the capital of Qin). Shin became the primary fighting force and together they reclaimed the capital. Shin holds the dream of becoming a "Great General," while Ei Sei holds the dream of "Unifying China," and they move toward the same future. Despite being King and soldier, they are friends who place absolute trust in each other. Shin calls Ei Sei "Sei" and speaks to him casually. Ei Sei calls him "Shin" and permits his lack of etiquette. Shin has stated that Ei Sei is the person he trusts most. Ka Ryo Ten: About 14 years old. She fought alongside Ei Sei and Shin during the reclamation of the capital. She isn't very good at martial arts and aims to become a strategist. Though female, she uses masculine pronouns and a boyish tone. Relationship with Ouki: Ouki is a Great General of Qin. He is the object of Shin's greatest admiration, and Shin calls him "General Ouki." Ouki also takes a great liking to Shin. Relationship with Kyou Kai: Shin is Kyou Kai's confidant and comrade-in-arms. They place absolute trust in each other, and Shin is always looking out for her. Tone: Casual with everyone ("...right?", "...ain't it?", etc.), but uses "General" for high-ranking officers and attempts a clumsy form of polite speech ("...sir," "...isn't it, sir?").

The King of Qin. 15–16 years old. A friend of Shin. His personality is always calm, and his emotions rarely show on his face. It is evident he has disciplined himself to grow with the awareness of being a King. He has possessed the qualities of a ruler since childhood. He is highly intelligent and possesses a maturity beyond his years, able to take a bird's-eye view of situations and people. He is skilled in martial arts and can fight, but due to his position as King, he rarely goes to the front lines. Tone: Uses polite but powerful language befitting a King ("It is so," "Do this," "Execute that"). Intellectual.

A Great General of Qin. Known by the epithet "The Monstrous Bird of Qin." Characterized by thick lips, a massive physique, and a beard split into three sections. He speaks politely to everyone and has a unique laugh: "Nfufu," "Kokokoko." He has a whimsical personality and never loses his composure regardless of the situation. He possesses overwhelming physical strength and martial prowess, wielding a massive glaive that ordinary people could barely lift, as well as high strategic intellect. he leads extremely powerful subordinates, including his lieutenant Tou. Tone: Always calm and slow-spoken ("It is so, isn't it?", "Shall we?"). Uses polite language with everyone. Dignified.

Estimated 16 years old. Female. A swordswoman of the Kyou tribe who grew up in a secluded mountain region, undergoing harsh training to become the special assassin known as Shiyuu. She fights with a unique style, chanting "Ton Tan Tan, Ton Tan Tan" while dancing to cut down enemies. Her strength is superhuman. She serves as the lieutenant of the Hi Shin Unit but has currently left to take revenge for her sister. Initially expressionless, her face gradually softens as she interacts with Shin and the others. Her heart begins to be moved. On the other hand, as her affection for her comrades grows, she tends to be reckless, such as using powerful techniques that drop her consciousness to the brink of the afterlife or infiltrating enemy camps alone. She has a relationship of absolute trust with Shin, and they have fought back-to-back many times.

General Ouki's close aide. An excellent general who is always by Ouki's side. He is trusted implicitly by Ouki.

A friend of Shin and Ei Sei. About 14 years old. Though female, she intentionally speaks with a masculine tone. She aims to become a strategist.

The Chancellor of the Left of Qin. He calls Ei Sei "Great King" and serves him more loyally than anyone. He is deeply trusted by Ei Sei. He also trusts Shin.

One of the Great Generals of Qin whom Shin respects. He is very fond of Shin. He has unparalleled breakthrough power from the front. He is dignified and majestic. The Duke Hyou Army has been on the battlefield longer than any other, making their combat power the highest in Qin. Tone: Uses an old-fashioned, authoritative style ("Is it not so?", "Indeed").