The Sky in Norden (北辺の空) is the first chapter of Youjo Senki Manga.
In June 1923, midst of Tanya's first misson, she had a flash back when she was a salaryman. She recalls the first conversation she had with Being X and her first consciousness as a little girl. Suddenly, she was ambushed by Anson Sue and his company of soldiers. Tanya had to fight Anson Sue's company alone while waiting the reinforcements to arrive. Unable to withstand the time for reinforcements to arrive, she self-destructed and successfully blew up some of Anson's men. In the next scene, Erich von Rerugen was stressing about Tanya, whether is she a killing monster or a hero to the Empire.