Full name: Tiena McLaren. A Lieutenant Colonel in the army of the human civilization, Human. Since it is the dawn of the firearm era, she is proficient not only with bolt-action rifles but also with blades and close-quarters combat. Though called a "Warmonger," she is a gentle woman at heart who wishes to stop the war. She always wears a black military uniform and cap, and carries a sword.

Chief of the General Staff for the Oni civilization, the Oni. Though she has a slender build typical of a woman, her physical strength is extremely high, making her a match for no other race. Her hardened body can deflect pistol rounds, and she cleaves enemies in two with a massive sword. Characterized by white hair and lifeless eyes, she wears red Asian-style folk clothing. Her personality is cold-hearted and war-loving.

A woman serving as a staff officer for the New Age, a race that is human yet not human. The bodies of the New Age people are composed of both human flesh and mechanical armor, which covers arms, legs, and more. Only those with the proper aptitude can wear this armor; Humans, though similar, cannot, which is why they are a distinct race. Her personality is mild and gentle, but she has grown somewhat haggard since the start of the Great War.

Chief of the Elven race and Chief of the Army General Staff. She is the one who declared war on the Oni led by Jena, dragging the entire world into the conflict. The Elves were originally masters of the bow, and by carrying that legacy into rifle manufacturing, their weapons boast overwhelming accuracy and ease of use, referred to as "shootable works of art." She is a woman whose personality remains largely mysterious.