Born into a violent family, she grew up in misery without affection. She kept hoping that life would get better, but that hope was dashed when death came to her.

However, she wakes up and is reincarnated in another world. Unfortunately, this world is not a comfort and is more cruel to her.

When she learned that she would be killed before she reached the age of fifteen, she decided to run away.

During her year on the run, she was hunted by assassins sent by her family. On the brink of death once again, a mysterious power within her awakens.

At the same time, a strange voice greeted her—an entity claiming to be her contracted spirit. He lost his memory, but knew that the power she had awakened was the power of the Saintess.

The spirit feels like he comes from area in the far west of the continent, an isolated and untouched place.

With no other purpose and hunted by the past, she and the spirit begin a journey westward, trying to escape this kingdom.