There are only ten "saints" in the world, a rare existence. Lana, who was born poor, finally becomes the saint she longs to be, thanks to her exceptional talent and hard work as a saintly vessel, as well as the help of Astor, the captain of the guard, and his friends. However, a terrible plot and treachery behind the scenes leads to the execution of those she loved and trusted more than anyone else. Lana, standing on the edge of despair after her beloved companions are killed, decides to take revenge with unprecedented extreme skills....