When Gretta was 10, she was kidnapped. The kidnappers taught her how to defend her self and fight. Then, she joined a clan. They were called the Winshine Fighters. Gretta, along with 5 other kids, would fight every day. They didn't know why they were practicing, though. One day, all the kids went into a battle. They didn't know who they were fighting, though. The leader of the Winshine Fighters asked Gretta to fight. Gretta's face got hurt. The area around her mouth got badly hurt. They sent her to the nearest hospital. Gretta had to wear a mask. Everyone in the Winshine Fighters got put into prison. Gretta, along with a girl named Wolfy, escaped. Because of her mask, Gretta is hidden, and on the run.