The film’s story begins with the Detective Precures investigating the “X Mark Incident,” when a fairy named Rain appears and requests for the Detective Precures’ help. Rain leads the team to a lovely garden called “Karin’s Garden,” but it is being overrun by tiny creatures called “Dame Dame.” The team investigates the “Dame Dame” creatures and discovers the secret hidden in the garden.

The cast members who voice the film’s original characters are:

Jinji Nishimura and Kyon from the comedy duo cotton are guest cast members for the film. The two play creatures known as Dame Dame, who can slap an X mark on things to make them unusable and unable to move.

Hanako Ueda (You and Idol Precure♪, Summer Time Rendering My Hero Academia FINAL SEASON episode director) is directing the film. Yoshimi Narita (Eiga HappinessCharge PreCure! Ningyō no Kuni no Ballerina, Eiga Precure All Stars New Stage 3: Eien no Tomodachi, Eiga Tropical-Rouge! Precure: Yuki no Princess to Kiseki no Yubiwa! films) is writing the script, Erika Fukasawa (Eiga Kimi to Idol Precure♪ Omatase! Kimi ni Todokeru Kirakkilive!) and Misaki Umase (You and Idol Precure♪) are composing the music, and Emiko Miyamoto (Eiga Precure All Stars F, Precure Super Stars! original character designer) is designing the characters and is also the film’s chief animation director. 

Additional staff members include art director Risa Fujii, color key artist Satoshi Takezawa, compositing director of photography Takumi Arai, and production manager Hirotaka Naota.

Yūka Masui and Chihaya Yoshitake performs the film’s ending theme song “FIRST PRISM.” Ami Ishii performs the insert song “First Step.”

The film will open in Japan on September 18.

The Star Detective Precure! anime debuted on February 1 on ABC TV, TV Asahi, and their affiliate channels at 8:30 a.m. JST. Crunchyroll is streaming the anime in North America, Central America, South America, Australia, New Zealand, Europe, Africa, the Middle East and CIS.

The anime centers on Anna Akechi, a second year middle school student who lives in Makoto Mirai Town. She travels back in time from 2027 to 1999 when her “companion fairy” named Pochitan appears on her birthday. In 1999 Makoto Mirai Town, Anna meets Mikuru Kobayashi, another second year middle school student who dreams of becoming a great detective. The two girls witness the troubles caused by the Phantom Thieves who steal people’s precious belongings, and they transform into great Precure detectives and use their deductive reasoning skills to protect the people’s smiles.

The anime stars:

Ami Ishii performs the series’ opening theme song “Heart ni Hint! Meitantei Precure!” (Hint In My Heart! Star Detective Precure!). Akane Kumada and Yūka Masui perform the ending theme song “Naze? Nazo?! ANSWER” (Why? Mystery?! ANSWER).

Sources: Star Detective Precure! film’s website, Comic Natalie