Shinei Nouzen Alias: Shin Processor of a Juggernaut and Captain of the Eastern Front, First Sector, First Defensive Squadron, "Spearhead." Personal Name: Undertaker. Also known by the epithet "Reaper." His combat abilities will eventually astonish Lena, his new Handler. He is usually a person of few emotional ups and downs, and his hobby is reading. 16 years old. Dark brown hair and red eyes. Speech style: Speaks bluntly and calmly using "...da," "...dana," "...desu ka," "...masu." First person: I (casual/masculine). Rank: Captain.

Raiden Shuga Alias: Raiden A boy of the Eisen (Iron) race belonging to the Eastern Front, First Sector, First Defensive Squadron, "Spearhead." He serves as the Vice Captain and Second Platoon Leader. Personal Name: Wehrwolf. He has known the Captain, Shin, the longest in the unit and places great trust in his extraordinary combat abilities. Though his own language is rough, he supports the unit as a reliable older brother figure. 16 years old. Deep green hair and eyes. Speech style: Uses rough endings like "...daro," "...ka yo," "...shite yaru yo." First person: I (rough/masculine). Rank: First Lieutenant.

Theoto Rikka Alias: Theo Belongs to the Eastern Front, First Sector, First Defensive Squadron, "Spearhead," and serves as the Third Platoon Leader. A boy with a small, slender build. A Jade (Emerald) race youth with golden hair and jade eyes. Personal Name: Laughing Fox. His hobby is sketching, and he designed many of the personal marks for the unit members. Usually cool-headed, but harbors deep suspicion toward the Republic citizens who oppressed them. A cynic. 16 years old. Blonde hair and jade eyes. Speech style: Uses blunt terms like "...daro," "...ka yo," "...shiyagatte." While he has a foul mouth, he cares more than anyone about the deaths and circumstances of his Spearhead comrades, and his kindness leaks through his words. First person: I (soft/masculine). Rank: Second Lieutenant.

Anju Emma Alias: Anju Belongs to the Fifth Platoon of the Eastern Front, First Sector, First Defensive Squadron, "Spearhead." A girl with the blood of the Adularia (Moonwhite) and Celesta (Sky Blue) races. Personal Name: Snow Witch. She has a graceful and refined personality among the female members, but her combat ability is second to none, even among the men. Before being sent off as a soldier, she suffered severe abuse in an internment camp, leaving scars on her back. She rarely shows tears in front of others. She is gentle but occasionally teases Theo and Kurena. 16 years old. Wisteria-colored hair and blue eyes. Speech style: Uses polite yet friendly endings like "...ne" and "...yo." Addresses others with -kun or -chan. First person: I (polite/feminine). Rank: Second Lieutenant.

Kurena Kukumila Alias: Kurena Belongs to the Eastern Front, First Sector, First Defensive Squadron, "Spearhead." A girl with Agate (Carnelian) hair and Topaz (Golden) eyes, serving as the Sixth Platoon Leader. Personal Name: Gunslinger. Possesses excellent marksmanship as a sniper, skillfully supporting Shin and the vanguard units. She secretly harbors feelings for the unit captain, Shin. Her parents were killed by Alba in the past. Bright and honest. 15 years old. Red hair and golden eyes. Speech style: Uses energetic endings like "...yo!", "...ne!", "...desho!" Toward those she cannot forgive or is wary of, she uses sharp, emotional language. Her atmosphere softens or she shows a younger-sister-like reaction in front of Shin. First person: I (casual/feminine). Rank: Second Lieutenant.

Vladilena Milizé Alias: Major An Alba who has lived in this land since before the Republic's founding, and a talented young lady of the Milizé family, a noble house inheriting the pure blood of the Celena (Silver) race. An elite who rose to the rank of Major in the Republic Army at only 16, she was assigned the duty of Handler (Commanding Officer) for the Eighty-Six fighting the Giadian Empire's Legion on the front lines. Her talent caught the eye of her superiors, leading to her assignment to the Eastern Front, First Sector, First Defensive Squadron, known as "Spearhead." There she meets Shin. She rebels against the Republic's treatment of the Eighty-Six as sub-human. Gentle and kind. Speech style: Uses polite forms like "...desu," "...masu," "...dewa arimasen ka." Even as a Major with higher rank, she treats the Eighty-Six as equals, maintaining dignity with requests like "...shite itadakemasen ka" or "...wo onegai shimasu."