Released to commemorate Kamen Rider 555's 20th anniversary, the film takes place after the ending of the TV series. Masato Kusaka and Mari Sonoda are fighting a new iteration of Smart Brain led by Kitazaki, who begins an operation to exterminate all Orphnochs, with Takumi Inui seemingly working with them for unknown reasons since his disappearance.
Takumi, Mari, Masato, and many other people who work at Kikuchi Cleaning Shop are leading their daily lives as usual. One day, a customer visiting the store is suddenly killed by someone, they need to try to find out who the murderer is...
After the kingdom of Crystalia is plunged into a deep darkness by Yodonheim, the army of darkness. Princess Mabushina, comes to Earth with the Kiramai Stones to find individuals with strong "shining spirits" to become the Kiramagers and fight against the Yodonheim Army.
