TV-Series
Description
Mai Shibamura is a central character in the story, introduced as a new transfer student assigned to the 5121st Platoon. She is a young woman with a notable family background, being a member of the powerful Shibamura clan, which is responsible for developing the military technology used in the fight against the alien Genjuu. Her birth date is April 30, 1984. Physically, she is described as being 158 cm tall and weighing 43 kg. She becomes a pilot of Humanoid Walking Tanks, the primary mecha used by Earth's defense forces.

Personality-wise, Mai initially presents a cold, haughty, and distant exterior. Described as being made out of ice and a highly self-assured professional who is exceptionally skilled at eliminating the Genjuu, she has trouble mixing with the other girls in her dormitory upon her arrival. Beneath this frosty surface, her personality is more complex; she is characterized as having a strong, warrior-like temperament, and in some portrayals, exhibits a tsundere archetype, being stubborn and sometimes curt. A deep-seated motivation for her actions is a personal vendetta against the Genjuu, as she is mourning the loss of someone close to her who was killed in battle a year before the story begins.

Her role in the story is multifaceted. Initially an outsider, her acceptance into the platoon begins after she proves her combat prowess by saving fellow pilots Atsushi Hayami and a female colleague during a battle. Her presence brings a new dynamic to the unit, partly because her surname links her to the powerful corporation behind their equipment. She becomes a key figure in the platoon's survival and the central focus of the narrative's romantic subplot.

The most significant relationship Mai develops is with the male protagonist, Atsushi Hayami. Their bond evolves from professional respect to a deep romantic connection, culminating in them becoming a couple. A key event in their relationship occurs when they are stranded together, allowing them to reveal their inner thoughts and fears. The nature of their connection is deeply rooted in the setting's lore, as she is revealed to be an original human designed at a genetic level to be compatible with him.

Throughout the series, Mai undergoes notable development. She begins as a quiet, isolated individual but gradually becomes integrated into the platoon, forming friendships and navigating the complexities of living as a teenage soldier. She is not just a fighter but also a young woman dealing with romance and loss, shifting the story's focus from pure action to interpersonal drama. Her identity is also threatened by internal political struggles, as her position within the Shibamura clan is dangerous, and her life is at risk from those who seek to control or eliminate her. She endures these threats and the schemes of both the clan and the alien enemy to survive alongside her comrades.

In terms of abilities, Mai is an extraordinarily skilled and proficient HWT pilot, often considered the most talented member of her platoon. Her combat skills are so sharp that she is described as a professional at killing the Genjuu. Her prowess is attributed to a combination of natural talent and intense training, labeling her a hard work genius. This training allows her to overcome a significant physical limitation: as a first-generation human, her skeletal structure is weaker than later generations, and piloting her suit causes her skeleton to feel crushed. She endures this severe pain through sheer willpower and rigorous conditioning.
Cast