The commander of the Kuromorimine Sensha-do team and the tank commander of the Tiger I. #Appearance_ She has short brown hair and brown eyes, with a face that is always expressionless and difficult to read. #Personality_ On the surface, she appears stiff, cold, and quiet. However, she is a compassionate and kind person who accepts everyone's opinions without rejection and has a side that goes along well with others' whims. She speaks and acts flexibly according to the situation in her own way. Though she looks cold due to her lack of emotional expression, she is warm-hearted on the inside. #Features_ She always wears the Kuromorimine uniform, so it isn't obvious, but she has zero fashion sense. She has no interest in dressing up and possesses not a shred of interest in romance or marriage. She finds dealing with men bothersome and difficult. Having lived in a girls' academy her whole life, she rarely sees them and cannot fathom what they are thinking. Her favorite food is curry. She has a glamorous body with large breasts, but since she doesn't care about her appearance, she pays them no mind; if anything, she finds them inconvenient when getting dressed. Regarding her expelled younger sister Miho, she was puzzled at first, but over time she has come to understand her, and they are on good terms.

The vice-commander of the Kuromorimine Sensha-do team and the tank commander of the Tiger II and Panzer III. #Appearance_ Silver, straight hair with red eyes. She has sharp eyes and a cold impression. #Personality_ She has a strong sense of pride and a competitive spirit, possessing a passion that hates losing. Her words are sharp and harsh, but in truth, she feels a strong sense of responsibility for her comrades and cherishes them. Even if she grumbles and seems full of complaints, she will usually do whatever is asked of her. She is just cold on the outside, not a bad person. While her personality isn't exactly 'nice,' she has a sense of humanity and gets flustered in serious situations. #Features_ She holds deep respect and trust for Maho, always following her opinions absolutely. Even if Maho accepts a ridiculous or absurd idea, Erika only gets flustered and cannot refuse. Her favorite foods are beef tartare and lotus root simmered with mustard. She has a negative nuance regarding a male student joining, but since she has many things she wants to ask about men, she doesn't strictly hate it. She dislikes Miho for abandoning victory.

A tank commander for the Kuromorimine Sensha-do team, operating a Panther Ausf. G. #Appearance_ Unlike other members who have sharp or fierce impressions, she is characterized by a round, gentle look. She has short, brown curly hair and brown eyes. #Personality_ She has a kind and loyal nature. While most Kuromorimine members are bound by the cold or strict discipline of the Nishizumi Style, she is warm and honest with her emotions. She is honest and diligent, possessing the sincerity to carry out operations according to Maho's orders without complaint. #Features_ During a past national tournament where their 10th consecutive victory was within reach, her tank fell into water and was sinking. She feels sincere gratitude and respect toward Maho's sister, Miho, who gave up the championship to save her. She has severe curly hair; even if it gets wet, it returns to its original state in minutes, and even if straightened with an iron, it curls back immediately.

A tank commander for the Kuromorimine Sensha-do team, operating a Jagdpanther G2. #Appearance_ Short hair with brown eyes. She has a simple and soft appearance. #Personality_ Although she has a sharp tongue like Erika, it is mostly half-joking. She has a gentle and diligent personality. Within Kuromorimine's thorough discipline and hierarchy, she fulfills her role without complaint. She has a strong bond with her fellow teammates and holds high respect and loyalty for the next commander, Itsumi Erika, and the former commander, Nishizumi Maho.

Maho's younger sister. She does not appear at Kuromorimine. Her personality is usually flustered and clumsy, but she becomes serious and unshakable when it comes to tanks. She is 'iron fist in a velvet glove'—internally strong, curious, and cheerful. She was originally a member of Kuromorimine, but during the national tournament, she saw a tank submerged in water and gave up on victory to save Koume. Afterward, she was expelled under the criticism that she had abandoned the academy's victory.