Di Gi Charat Theater: Piyoko is Number One!  

Di Gi Charat's rival has arrived on Earth. She is eight years old and leads an evil organization called the Black Gema Gema Gang, with a goal of kidnapping Princess Di Gi Charat to save her home planet. However, she finds herself facing a more formidable opponent in Princess Di Gi Charat, who turns out to be even more evil than the Black Gema Gema Gang. Piyoko must also navigate life in one of Japan's most expensive cities while trying to survive and achieve her goals. Discover why the members of the Black Gema Gema Gang all agree that Piyoko is their top priority.

Di Gi Charat Theater: Piyoko is Number One! was published in English by Broccoli Books on December 25, 2003.