Unable to afford the living, the stepmother sent Sophie and her two sisters to the hat shop as an apprentice. The two sisters soon left the hat shop to pursue their dreams, but only Sophie persisted. One day, a mobile fortress came next to the town. It is said that the owner of the fortress, Hal, absorbed the soul of young girls, so the girls in the town dared not come near. In retaliation for Sophie's meeting with Hal, a vicious witch used witchcraft to turn her into an 80-year-old woman, and Sophie could not tell anyone about her witchcraft. In desperation, Sophie decided to flee the town alone. It was dark, and the weak Sophie didn't go far and came to the mobile castle. Thinking that she was already an old woman, Sophie ventured into the castle. No, I met the same fire demon as her. The two agreed to help each other break their respective spells.