Tanya Degurechaff

Tanya Degurechaff is the main villainess protagonist of the anime/light novel series Youjo Senki: Saga of Tanya the Evil. She was originally a salaryman who died in an accident in 2013, he was reborn as a girl living in an alternate universe version of Europe during World War I. At just nine years of age, Tanya enters the Empire's Mages Division and is promoted to Second Lieutenant. Her talents, efficiency, and ruthlessness makes her an asset for the Empire and a threat on the battlefield.

Personality
Tanya seems be a very cute little girl who is beautiful and sightly sarcastic. But deep inside, she is highly power-hungry, selfish, cruel, ruthless, sadistic and hot-tempered. Especially when she is in battle against her enemies, she shows utter ruthlessness and bloodlust just to accomplice her missions. Tanya also strongly disapproves of failure and disobedience from her subordinates. She is loyal to her own job and always wants to finish it as soon as possible. Tanya will never let anyone discriminate her appearance because of how fast she goes through the ranks in the military at such a young age.