Once upon a time, in a forgotten temple in the middle of a deep, dark forest, a god of death stumbles across a baby girl called Olivia and takes her in to raise as its own. Under the death god's tutelage, little Olivia spends her days studying to become a brilliant tactician and master of the blade. But her destiny changes irreversibly upon her fifteenth birthday. When the death god suddenly vanishes, Olivia must leave the forest and make for the battlefield! But none of her books or drills have prepared her for other people—nor for the fearsome war between a mighty empire hellbent on uniting the continent and a kingdom struggling to maintain its autonomy as the last remaining holdout against the imperial conquest. What Olivia lacks in social skills she makes up for with martial prowess, and when she arrives on the scene, no one on either side will know what hit them. As she searches for her missing teacher and fends off the empire, the epic tale of Olivia and her ebony blade begins! (Source: J-Novel Club)

Olivia is just a baby when the mysterious Z finds her at a temple in the depths of the Forest of No Return. From that day on, the temple becomes her home and Z her family. Z, a god of death, educates her in the ways of the world, in combat, and in the long-forgotten arts of magic—right up until the day Z disappears. Olivia leaves the forest for the first time in search of Z with its ebony blade in hand. Out in the wider world, all is not well. A bitter war rages between the Asvelt Empire and the Kingdom of Fernest, and Fernest is losing badly. When Olivia shows up on Fernest’s doorstep with a sack of imperial heads looking to volunteer, the royal army happily welcomes her into its ranks. Thanks to Z’s training, she quickly proves herself as a ferocious warrior. In fact, she might be just what Fernest needs to turn the tide of the war…but will they accept her lack of people skills and disregard for discipline? And will she ever see Z again? *Source: J-Novel Club, Vol. 1*