The Sky in Norden (北辺の空) is the first chapter of Youjo Senki Manga.
In June 1923, midst Tanya's first misson, she has a flash back to when she was a salaryman. She recalls the first conversation she has with Being X and subsequent reincarnation as a young girl into the world she currently resides. She is targeted in unexpected enemy counterattack by a mage company lead by Anson Sue. Tanya is forced to engage and delay Anson Sue's company alone to defend friendly artillery units. Unable to withstand the enemies numerical superiority, she blows herself up in a suicide attack. In the next scene, Erich von Rerugen broods over Tanya's military record, contemplating whether is she a monster or a hero.