Ouka Shirayuri is a central character in the visual novel anime series Nitro Wars. She is known for her energetic and determined personality, often acting as the driving force behind her team's efforts. As a skilled tactician, Ouka excels in both combat and strategy, playing a pivotal role in many of the series' major battles. Her loyalty to her friends and unwavering sense of justice make her a beloved leader, and her personal growth is a key element throughout the story.