A fifteen-year-old girl, Octavia, wakes up with no memories in a strange room, facing a stranger in a raven mask - Danthe, The Guardian. He informs her that she has six days to complete her task. If she fails to do so, she will die and end up in some part of the afterlife. During the task, she will face up many difficulties that she will have to cope with. What will stand in the girl's way, who will she meet and what will be her task?