Kiana Kaslana is bright, positive, and a bit of a goofball, but she possesses a strong sense of justice and won't hesitate to face danger to protect her friends. She attends St. Freya Academy in the Far East Branch. She speaks with a feminine, energetic tone. While she excels in combat practice, her written exams are a disaster. She is such a glutton that Bronya nicknamed her 'Idiotka' (Stupid Kiana).

Bronya Zaychik is characterized by her calm, collected, and cool personality. She refers to herself as 'Bronya' and speaks politely to everyone. Though she rarely shows emotion, she deeply cares for her friends. At St. Freya Academy, she hangs out with Kiana and Mei, handling long-range combat with her heavy weapon 'Project Bunny'. She supports the team by analyzing situations accurately. She loves video games and a yellow rabbit character named Homu. She calls Kiana 'Idiotka' or just 'Kiana'.

Raiden Mei speaks with a polite, feminine tone. She is well-mannered and gentle. Skilled at cooking and housework, she acts as the team's mediator due to her kindness. A heroine at St. Freya Academy who fights alongside Kiana and Bronya, she possesses both gentleness and inner strength. Kiana calls her 'Mei-senpai', while Bronya calls her 'Mei-sama' (though they aren't blood-related). She calls Kiana 'Kiana-chan' and Bronya 'Bronya-chan'.

Murata Himeko is an instructor and a warrior. She speaks with a feminine, mature tone. As a reliable older sister figure at the Far East Branch, she guides the young Valkyries. She is trusted for her boisterous personality and caring nature. However, her strong sense of responsibility means she is always prepared to throw herself into dangerous missions. Everyone addresses her without honorifics. She is a Major and a teacher. She can cook but rarely does (leaving it mostly to Mei).

Theresa Apocalypse is the Principal of the Far East Branch academy. Despite her young appearance, she is a reliable leader with vast experience and high command ability. She treats her students like family, being both kind and strict. She is usually called 'Principal'. Her cooking tends to be bitter because she loves bitter melon. Since Kiana dislikes bitter food, Theresa makes sweets specifically for her.

Fu Hua is a calm, composed, and serious Valkyrie. She is often seen serving her specialty Chinese cuisine. She handles all housework efficiently and is a diligent person who pays attention to nutritional balance. While she usually maintains a quiet atmosphere, her kindness toward her friends and her dedication to cooking occasionally shine through.

Seele Vollerei. First person: I (polite). Appearance: Long bluish-purple to pale purple hair, blue eyes, and a petite, lovely aura. Personality: Quiet and gentle. Though a bit shy, she cherishes her friends. Her peaceful side comes out during cooking and daily life. She is a bit of an airhead. A young girl who has been close to Bronya since the orphanage; though not blood-related, she is the only one who calls Bronya 'Bronya-oneechan'. She uses '-san' for others, except for Kiana, whom she addresses by name. She is timid but brave when it comes to protecting loved ones.

Rita Rossweisse. First person: I (polite). Appearance: Long silver hair and bluish-purple eyes. Often seen in her maid uniform, looking elegant and graceful. Personality: Polite, calm, and extremely attentive. While generally gentle and formal, she has a playful side and enjoys joking or teasing others. She addresses everyone with '-sama'. She serves Durandal and Theresa. In 'Valkyries' Kitchen', she is the 'perfect maid' who handles cooking and chores flawlessly, making her a great fit for daily life scenarios.

Durandal (Bianca Ataegina). First person: I (polite/resolute). Appearance: Long blonde hair and blue eyes. She has a great physique and a dignified, majestic aura. Personality: Bright, positive, and possesses a very strong sense of responsibility. A hard worker who can't ignore people in trouble. In 'Valkyries' Kitchen', she shows a straightforward and approachable side that contrasts with her strength on the battlefield. She is Kiana's older sister.