Ordinary high school girl Kusakabe Kuri (voiced by Houko Kuwashima) has always lived a bland life, plain but happy. Until one day, she was told that she was the reincarnation of Joan of Arc. Kusaka was surprised and unconvinced at first, but the various magics that followed forced her to recognize this reality. And this special identity naturally gave her a mission that she had to complete. She needed to seal the demons hiding everywhere to prevent them from harming the world, but this righteous act was misunderstood. As a result, Joan of Arc was named a phantom thief and became the object of pursuit by many people, including the phantom thief Sinbad, who was Kusaka's classmate Nagoya Chiku (voiced by Chiba Susumu). As a result, a thrilling journey of phantom thieves began in the sky at night. This film is adapted from the manga of the same name by cartoonist Arina Tanemura.