How did things end up like this? Only a decade ago, the great nation of Valirie was at the height of glory, and peace ruled the land. The Oathsworne were a fifty strong clan, dealing with minor issues and the occasional possessed soul. The Church of Five guided humanity to an age of prosperity. In only ten short years, Valirie has all but fallen, with the only surviving cities being those that took it upon themselves to defend themselves or garrison cities that have been placed under martial law, with no central order keeping them together. The Oathsworne have died fighting all kinds of atrocities, with only you, the only surviving member. And the Church? How could it fall so low that the God of Duty would abandon the call to defend the innocent against a viscous army of demon-tainted gnolls?
To sit and wait as you knew death and even worse horrors were closing upon the innocent, could there be a more blatant violation of your codes you swore to upkeep? You would not stand it. You could stand it. And so you turned your back on your home of five decades to do what is right, even without your god's blessings... Even if you knew that you were powerless alone. You cried out that if there were any justice in this world, any fairness, that would some deity give you strength for this upcoming fight. Oh how foolish you were. Your call was indeed heard, but by the arch-enemy, one of the seven Demon Lords of sin. Despite this... you needed power, and that is exactly what she was offering. Thousands of options flew before you, and you picked quickly those familiar to you from your holy background, glossing over how similar several of them were to your old powers.
With renewed vigor and the strength dwarfing the Oathsworne clan's at its peak, you road off, fully expecting to die in combat. But fate had different plans for you. You awoke in a field covered in blood, bone, and corpses. The stench of death mixed with burning corpses and brimstone, forming a scent so potent it burns both your lungs and eyes. Your body ached in ways you didn't know was possible and it refuses to move like you tell it too. You finally manage to force yourself onto your feet and survey the carnage. The corpses are clearly gnolls, but you can't tell if the demonic touch to them is from the hellfire or inherent. This must be the work of your new patron.
As you contemplate what you've done, a voice calls out, "Oi! Lady! You alright?" Turning to the voice you see a boy, no later than twenty and probably much younger, call out to you. He's gripping a crude spear, made from a knife tied to the shaft of a broom with some twine.