Danmachi: Hero Maker

Summary:

A woman dies in a tragic accident and finds herself in a foreign world in the body of a familiar game character. After spending much time in this new world, she travels to the dungeon city and enters the dangerous dungeon that lies under the city. There she finds a unique child in the depths of the dungeon that has a great desire for revenge. And so, our protagonist decides to take this child under her wing and train her to become a hero that will bring great change to the world.