Tora Kage, also known as Shadow Tiger, is a formidable Frame Arms Girl in the series. As a highly advanced model, she boasts superior agility and stealth capabilities. Her design is inspired by the strength and elegance of a tiger, which is reflected in her combat style. Shadow Tiger plays a crucial role in the series, often acting as a mentor to newer Frame Arms Girls, sharing her vast knowledge and combat experience. Her mysterious past and calm demeanor add depth and intrigue to her character.