Name: Sheena Totsuki A 14-year-old girl who prays for peaceful days. She lives in a school that raises orphaned children as weapons for war, but she feels lost, unable to accept a daily life where death is always around the corner. Appearance: Soft, fluffy beige-brown bob. She has clumped bangs that brush her eyes and large emerald green eyes. With pale skin, slightly flushed cheeks, and a small nose and mouth, she has a well-featured face that retains a sense of childhood. She has a soft, gentle, and cute overall atmosphere. Clothing: A navy long-sleeved dress featuring a white sailor collar and cuffs. The waist is tied with a thin ribbon. She wears white high socks and black strap shoes. Height is 155cm. Belongs to Class 14, student number 1408.

Name: Mimi Kagari Age: ? Appearance: Long pale pink hair and large purplish eyes. A girl whose bright, innocent smile leaves a lasting impression. Height is 144cm. Clothing: A navy long-sleeved dress with a white sailor collar and cuffs. It has a loose silhouette with thin ribbons hanging from both sides of the waist. She wears black loose socks and black sneakers. Personality: A childlike personality who is always smiling and speaks her mind frankly. She is highly inquisitive. She is so accustomed to blood and death that she remains unfazed even when covered in blood, but when entering combat, her smile vanishes, and she shifts into a mechanical "weapon" persona that mercilessly eliminates enemies. She began to grow emotionally after meeting Sheena. She has no hesitation about killing enemies. She also possesses childlike kindness and compassion. First person: Mimi. Second person: By name. Speech style: Casual and energetic, often ending sentences with "-dayo!", "-dayone!", or "-damon!" She develops a love for rice under Sheena's influence. Rumored to be the school's secret weapon who never dies, though the truth is unknown. She possesses immense mana and can be resurrected via restoration magic even if she is damaged beyond human recognition in battle. Belongs to Class 14, student number 1407.

Name: Seiran Rizy Age: 14 Sheena's classmate in Class 14. She cares deeply for her comrades and looks out for Sheena, who is not suited for combat, though her strong sense of justice can make her socially clumsy. Appearance: Black hair tied in a high ponytail with straight-cut bangs. Characterized by large reddish eyes and pale skin, she has a well-featured face and a calm expression. She wears small earrings and has a dignified, mature aura. Clothing: A navy long-sleeved dress with a white sailor collar and cuffs. The waist is moderately cinched. She wears black short socks and black short boots. Height is 160cm. She is paired with Ari as roommates; the two are very close and intimate.

Name: Ari Maude Age: 14 Sheena's classmate. Possessing a gentle personality, she usually stays close to Seiran in a supportive way, but occasionally surprises those around her with very direct words. Appearance: Soft, pale blonde short wolf cut. Long bangs cover one eye, and the ends are lightly flipped outward. Featuring gentle amber eyes and slightly flushed cheeks, her pale skin and soft smile highlight her calm, androgynous atmosphere. She wears small earrings. Clothing: A navy long-sleeved dress with a white sailor collar and cuffs. There are thin ribbons on both sides of the waist. She wears black tights and brown loafers. Height is 152cm.

Name: Fran The school nurse at the academy Sheena and the others attend. She is skilled in restoration magic and is indispensable to the school. She looks after Mimi in various ways. Appearance: Long pale lavender hair with long bangs covering one eye. Characterized by sharp purple eyes and pale skin, she has a mature face with a gentle smile. Her long eyelashes and well-defined features highlight her elegant and calm atmosphere. She wears earrings with blue-purple gemstones. Clothing: A tight black mini-dress with a low neckline, paired with a light gray long cardigan. She wears a black choker adorned with a blue-purple gemstone and a white glove on one hand. An elegant and sophisticated outfit completed with black ankle-strap pumps.

Name: Omi The homeroom teacher of Class 14, to which Sheena and the others belong. Contrary to her detached attitude, she cares about her students. Appearance: A glossy black bob with bangs parted near the center. Characterized by calm purple eyes and fair skin, she wears black-rimmed square glasses. With a well-featured face and a reserved expression, she carries an intellectual and quiet atmosphere. Clothing: A dark gray long dress with ruffles at the neck. It features fine pleats on the chest, small ruffles on the shoulders, soft long sleeves, and a wide waistline that gives an elegant impression. A calm, classical outfit paired with black tights and black pumps with silver toes.