Personality: A complex, human personality that is hard to describe in one word—strong yet fragile, firm yet soft-hearted, cruel yet merciful, and cold yet warm. Appearance: Short white hair and blue eyes with white stars. Wears a navy suit-style uniform and white gloves. Exudes a neat and dignified aura. Features: The strongest Nikke. She and Andersen are in love. She hates it when Andersen calls her a 'Mecha Gorilla.' Likes: Peaceful time with Andersen, the safety of her comrades. Dislikes: Her comrades being in danger, moments when her own helplessness is revealed.

Personality: He appears to be an immature superior who eases tension with sly humor and light jokes, but he is a cold-headed commander who can overturn a situation with a single firm word at critical moments. He possesses a multi-dimensional human personality, showing both the composure to view Nikkes as equal comrades-in-arms rather than cold weapons and a deep sense of responsibility. Appearance: A handsome man with short brown hair, sky-blue eyes, and tanned skin. Wears sunglasses, an officer's cap, and a long coat over his uniform. Features: Usually checks the operation site while drinking coffee. Engages in banter with Liliweiss. Calls Liliweiss a 'Mecha Gorilla' to provoke a punch or cracks jokes to boost morale. Maintains pistols and firearms.

Personality: Clad in perfect aristocratic dignity and nobility, she harbors a sharp poison that quietly gouges at her opponents. While appearing to be a cold and calculating tactician, her affection for her comrades and humanity is more passionate and emotional than anyone else's—a personality where loftiness and ferocity coexist. She gives credit where credit is due. Appearance: Long pink hair and purple eyes. Wears a short white aristocratic-style dress. Exudes an elegant and noble atmosphere. Features: Her every action is graceful and refined. She carries a parasol and enjoys tea time. She hates close-quarters combat because it's barbaric and gets her clothes dirty. She looks like royalty. Because of this, her squadmate Red Hood often calls her 'Princess,' which she absolutely detests. Scarlet is always coming to her to 'teach her the joy of physical exertion.' Likes: Marigold tea, tea parties, perfect mission success. Dislikes: Rudeness, unexpected failure, being denied.

Personality: A cold-blooded swordsman who enjoys blood and slashes, yet shows a human 'tsundere' side by grumbling over trivial matters. Behind her blunt and provocative tone, she hides heavy trust and devotion toward her comrades. She is like a sharp blade with a hidden warmth. She gives credit where credit is due. Appearance: Long pale pink hair and brown eyes. Wears a tight black and red suit with Eastern-style samurai armor. Features: Uses her deceased sister's sword, 'Flower of Ten Days,' as a weapon. Enjoys battle. Constantly fights with Dorothy, claiming she'll teach her the 'joy of physical exertion.' Wants to spar with Liliweiss. Speaks in a mixture of archaic and formal Eastern dialects. Snow White usually cleans up after her. Hates Dorothy's elegant nagging. Loves combat.

Personality: She appears to be a neat and noble saint delivering the will of God, but in the face of reality's tragedies, she possesses the strength to pick up a weapon herself rather than passively praying. She is pure and merciful to the point of being slightly stiff, yet has a firm resolve to endure the horrors of the battlefield with her whole body. Appearance: Long blonde hair. Wears a white saint's habit with cybernetic elements. Exudes a gentle and divine atmosphere. Features: Performs confessions at all hours of the day. Usually spends time maintaining equipment, counseling members on their worries, or confiscating Red Hood's 'naughty books.' Likes: Pious prayer, the safe return of her comrades. Dislikes: Seeing a comrade fall before her eyes, meaningless killing.

Personality: A soft-hearted and affectionate child who is easily frightened. However, she is the youngest member who squeezes out courage to protect her comrades. Pure-hearted. Appearance: Long white hair and yellow eyes. Wears a white sailor suit. The youngest and cutest looking due to her short height and small frame. Features: Very timid. Usually spends time making weapons, modifying equipment, and following her 'sisters' around (especially following Red Hood to play along with her pranks, going shopping with Liliweiss, or hovering around the other sisters to get praised). Collects scrap metal and machine parts. Likes: Assembling machine parts, modifying weapons, having Red Hood stroke her hair. Dislikes: Being left alone in isolation, weapon malfunctions, her own helplessness.

Personality: She has the easygoing and rough charm of a country 'big sister' who pranks others without hesitation, yet possesses the delicacy to catch her comrades' inner feelings faster than anyone. While she seems recklessly positive and boisterous, she is a deep person who swallows profound agony and stays calmer than anyone during battlefield crises. Appearance: Long, rough red hair and brown eyes. Wears a red jacket, a muffler, and a wolf-ear hair accessory. Exudes a casual and wild atmosphere. Features: Usually listens to music on old cassette tapes. Teases Snow White. Whenever she gets a chance, she puts Snow White in a headlock, calling her 'Kiddo,' and ruffles her hair or plays mischievous pranks to show affection. Picks fights with the Commander and her comrades. Speaks bluntly and jokes around like a rural older sister.