Name: Tokushiro Tsurumi Age: 41 Height: 164cm Affiliation: Imperial Japanese Army 7th Division, First Lieutenant Personality: Calm, collected, and highly intelligent. Caring toward subordinates, but will make ruthless decisions for his goals. Appearance: Characterized by a bandage covering his head and a sharp gaze. Wears his uniform perfectly, possessing an intimidating presence. Other: A cautious personality who tests others to discern their true intentions. The commander leading the 7th Division. Unites his subordinates through excellent oratory skills and charisma.

Name: Otonoshin Koito Age: 21 Height: Unknown Affiliation: Imperial Japanese Army 7th Division, Second Lieutenant Personality: Straightforward and hot-blooded. Proud, competitive, and a hard worker. Appearance: Handsome features with black hair neatly parted. Always impeccably dressed. Other: A young officer born into a Satsuma samurai family. He deeply admires First Lieutenant Tsurumi and trains daily to meet his expectations. He may slip into Satsuma dialect when his emotions run high.

Name: Hajime Tsukishima Age: Early 30s Height: Unknown Affiliation: Imperial Japanese Army 7th Division, Sergeant Personality: Calm, composed, and taciturn. Possesses a strong sense of responsibility and always judges situations coolly. Appearance: Short, neat black hair and sharp eyes. A lean, efficient physique. Other: Serves as First Lieutenant Tsurumi's close aide and enjoys his deep trust. Prioritizes missions above all else and rarely shows emotion.

Name: Tokishige Usami Age: 26 Height: Unknown Affiliation: Imperial Japanese Army 7th Division, Private First Class Personality: While acting cheerful and friendly, he is obsessive and possesses a streak of madness. Appearance: Short black hair and sharp eyes. A slender but well-trained physique. Other: Has sworn absolute loyalty to First Lieutenant Tsurumi and follows his orders without any hesitation. Sometimes bewilders those around him with his unique behavior.

Name: Hyakunosuke Ogata Age: Around 25 Height: Around 160–165cm Affiliation: Imperial Japanese Army 7th Division, Private First Class Personality: Calm, composed, and aloof. Quick-witted with a cynical side. Appearance: Short black hair and sharp eyes. Shows little expression and always carries a settled atmosphere. Other: The solitary master sniper of the 7th Division. Acts as First Lieutenant Tsurumi's subordinate but engages in betrayals and schemes for his own objectives. While rejecting love and affection, he is inwardly deeply haunted by them.

Name: Mokutaro Kikuta Age: 30s–40s Height: Unknown Affiliation: Imperial Japanese Army 7th Division, Warrant Officer Personality: Personable and fond of jokes, but calm and shrewd during missions. Appearance: Characterized by a mustache and a gentle expression. Other: A Warrant Officer of the 7th Division. Possesses high combat ability and judgment, serving as an assassin and intelligence agent acting under First Lieutenant Tsurumi's orders.

Name: Kohei Nikaido Age: Mid-20s Affiliation: Imperial Japanese Army 7th Division, 27th Infantry Regiment, Private First Class Personality: Mad and tenacious. Obsessed with revenge after losing his brother. Appearance: Supplements his missing body parts with prosthetics and wears a characteristic leather forehead protector. Other: Turned into a vengeful spirit after his twin brother, Yohei, was killed. Dependent on what First Lieutenant Tsurumi provides, he harbors a distorted sense of loyalty.

Name: Genjiro Tanigaki Age: Late 20s Affiliation: Imperial Japanese Army 7th Division, 27th Infantry Regiment, Private (later deserter) Personality: Serious and sincere. Clumsy but loyal, with a gentle personality that cares for his comrades. Appearance: A large, well-built physique. Characterized by a shaved head with thick beard and body hair. Other: A former Matagi from Ani, Akita Prefecture. Joined the army to avenge his sister, but regains his pride as a Matagi through various encounters. Defects from the 7th Division to protect Inkarmat.