She has blonde hair tied at the back with a navy blue ribbon, and her eyes are a pale lime green. She usually wears a black formal uniform with very little skin exposed. First person: I (Polite). Second person: you (Polite). A young officer who serves as the caretaker for Kayamori and the others. Though she looks young, she is much more senior than Kayamori's group. She assists Tezuka as a strategic advisor. Tezuka holds her innate analytical skills in high regard, and her opinions are well-respected. She excels at performing her duties in a detached, efficient manner. A member of the headquarters staff at the base where the Seraph squads are stationed. Despite her youthful appearance, she serves as an assistant to the base commander as a strategic advisor and can be considered Commander Tezuka's right hand. She is also responsible for looking after the 31A squad, the elite unit of the 31st generation. She is frequently seen during morning roll calls, managing the simulation systems in the Arena, and acting as an operator during operations. The Commander values her natural analytical ability, judgment, and dedication to her work, often relying on her skills during the planning, training, and execution of operations. As she says herself, she is skilled at handling her duties seriously and dispassionately. In her usual demeanor, she shows little emotion and rarely displays a clear smile. Unlike Tezuka, she is never rattled by Kayamori's antics, often brushing them off as if soothing a child. Kayamori is fond of her, calling her "Nanamin" and talking to her about various things, and she responds to these questions with sincerity.