Mako Reizei, a second-year Ooarai Girls Academy student, serves as the Anglerfish Team’s Panzer IV driver. Diagnosed with hypotension, her chronic drowsiness and morning sluggishness result in 251 tardy marks, 12 absences, and 5 authorized leaves. Despite this, she excels academically as class valedictorian, mastering complex skills like tank operation through rapid comprehension of technical manuals. Her alertness sharpens nocturnally, contrasting daytime lethargy. Emotionally reserved yet prone to mood shifts, Mako fears heights, supernatural phenomena, and her grandmother Hisako’s disapproval, though she deeply cherishes her. Orphaned in elementary school, Hisako remains her sole family, with lingering guilt over a childhood argument with her late mother motivating Mako to graduate early and assume caregiving duties. Initially joining Sensha-dō to mitigate attendance penalties, she proved critical during a mock battle by replacing an incapacitated Hana Isuzu as driver, leveraging quick reflexes to avert a tank’s bridge collapse. Against Saunders University, her abrupt attempt to swim ashore upon hearing of Hisako’s hospitalization was thwarted by teammates, who secured Kuromorimine’s aid for her return. In the finals against Kuromorimine, her precision driving evaded Maho Nishizumi’s Tiger I, executing a decisive drift to target its rear armor. Post-victory, Midoriko Sono cleared her disciplinary record, eliciting rare emotional gratitude. Hisako’s jubilant parade dance underscored their bond. Notable traits include a preference for olive blossoms and the Panther Ausf.G tank, a birthday aligning with Germany’s 1939 invasion of Poland, and the fleeting nickname "Remako" during the Pravda battle. Spin-off media feature feline-themed depictions and a CD drama visit to Pravda Girls High School. She uniquely shares Nonna’s piggyback ride—a gesture otherwise reserved for Katyusha.