Chizuru Nanbara, the sole female pilot in the Combattler Team, commands the Battle Marine unit—the lower body of the combined robot—with sea-teal hair cascading to her hips, piercing blue eyes, and a slim, curvy frame clad in a pink pilot suit adorned with a skirt, yellow gloves, boots, and a prominent "V" emblem on her torso. Her gentle, nurturing demeanor positions her as an older sister figure to teammates, though she readily confronts recklessness or injustice. Raised by her grandfather, Dr. Nanbara, creator of Combattler V, she conceals a valvular heart condition until it forces her withdrawal during a pivotal mission, requiring surgery. Defying her health struggles, she swiftly resumes duty, exemplifying resilience.

Orphaned young and raised solely by her grandfather, Chizuru’s unspoken affection for the team leader evolves into mutual commitment by the series’ end. Beyond combat, she aspires to idol stardom and harbors a fear of snakes, while her surname—combining "south" and "field"—hints at her roots. Spin-offs like *All-Star Combattler V* expand her role, exploring interactions with characters across interconnected plots.

Specializing in logistics, her Battle Marine handles transport and repairs, underscoring her support-focused role. Private moments, such as hesitant shower scenes revealing her modesty, contrast her battlefield resolve. Throughout her journey, she harmonizes personal trials—parental absence, health battles, quiet romance—with unwavering dedication to the team, cementing her as both empathetic anchor and steadfast warrior.