Tanya Degurechaff is the main protagonist of the anime series 'Youjo Senki', also known as 'The Saga of Tanya the Evil'. She is a young girl with blonde hair and blue eyes, known for her ruthless and strategic mind. Initially a salaryman in modern-day Japan, she is reincarnated as Tanya in an alternate world resembling World War I Europe, where she serves as a soldier in the Empire's military. Driven by a desire to climb the ranks and defy Being X, who reincarnated her, Tanya becomes a formidable and feared presence on the battlefield, often leading her troops to victory with her exceptional tactical skills.