The opening of the film will be nano.RIPE, who already put the main themes of the television series and the OVA. Kotori Koiwai, Rie Murakawa, Ayane Sakura and Kana Asumi will perform the ending as their respective characters, the theme being a ZAQ composition.
The film will tell the story of the "Arc of the Journey to Okinawa" from the original manga.
The team and the cast will return from the television series, their voices being:
- Kotori Koiwai as Renge Miyauchi
- Rie Murakawa as Hotaru Ichijō
- Ayane Sakura as Natsumi Koshigaya
- Kana Asumi as Komari Koshigaya
- Kaori Nazuka as Kazuho Miyauchi
- Rina Satou as Kaede Kagayama
- Misato Fukuen as Hikage Miyauchi
- Ryoko Shintani as Konomi Fujimiya
Shinya Kawatsura will manage the direction under the SILVER LINK studio, while Reiko Yoshida will put in the scripts. Mai Otsuka will be the one who adapts the character designs to the anime again, while the funds will be put by KUSANAGI. Toshiki Kameyama (grooover) will be the sound director, Hiromi Mizutani will compose the music and Lantis will be in charge of the musical production.
Asahigaoka might look like typical, boring countryside to most; however, no day in this village can ever be considered colorless thanks to five students of varying ages occupying the only class in the only school in town. The youngest student is first grader Renge Miyauchi, who brings an unadulterated wit, curiosity, and her characteristic catchphrase, "Nyanpasu!" Then there are the Koshigaya siblings consisting of the quiet ninth grader and elder brother Suguru, diminutive eighth grader Komari, and the mischievous seventh grader Natsumi. The recent arrival of Tokyo-raised fifth grader Hotaru Ichijou, who appears overdeveloped for her age and thus naturally holds an air of maturity, rounds out this lively and vibrant group of five classmates.
