Maron Kusakabe may seem to be an Ordinary High School Student, but secretly she is the Reincarnation of Joan of Arc, Kaitou Jeanne! Maron is on a Mission From God to seal demons hiding in works of art, which possess and corrupt pure-hearted people that admire their beauty. Unfortunately, sealing the demon also causes the artwork it inhabits to disappear, making Jeanne seem to be nothing more than a petty (if stylish) thief to most, meaning that the police and Maron's best friend Miyako, who dreams of becoming a detective, are dedicated to catching her. Fortunately, Jeanne has God's blessing and a number of divine tools at her disposal, giving her an edge over them.