Produced by C-Station and distributed by Shochiku, the film is directed by Yoshiaki Kyogoku from an original story written by Jin Tanaka and Mutsumi Ito.

In the film, a grown-up Nadeshiko Kagamihara, Rin Shima, Chiaki Ōgaki, Aoi Inuyama, and Ena Saitō reunite to build a campsite.

The film was announced in October 2018, with Kyogoku, Tanaka, Ito, and character designer Mutsumi Sasaki confirming their return from two seasons of Laid-Back Camp in April 2021.

Yumiri Hanamori, Nao Tōyama, Sayuri Hara, Aki Toyosaki, and Rie Takahashi were confirmed in October 2021 to be reprising their voice roles from the anime television series, with their characters going to be matured in the film.

Years later, Rin, a magazine editor in Nagoya, is visited by Chiaki, who has begun working at Yamanashi Prefecture's tourism promotion organization recently.

While in an izakaya, Chiaki mentions working on a redevelopment plan for an abandoned facility in the prefecture when Rin suddenly suggests building a campsite on its vast space.

Following a crab hot pot at Nadeshiko's house and Aoi's arrival, Chiaki reveals her plan to build a campsite and assigns everyone's role, including Ena who is not present due to her work.

After their trial camping, Chiaki informs the group that an investigation is set to take place on the campsite due to the shrapnel being connected to buried earthenware found in the prefecture.

[10] In October 2018, the film was announced at the Yuru Camp Secret Society Blanket Enrollment Explanation Meeting event in Saitama Prefecture.

[12] Rie Takahashi, the voice actress for Ena Saitō in two seasons of the anime series, confirmed on her Twitter account that the announcement of the film's release date on April Fool's Day was "not a joke".

[13] Including in the announcement was a concept visual from a storyboard drawn by director Yoshiaki Kyogoku, which shows a matured Nadeshiko Kagamihara and Rin Shima and a catchphrase saying, "I am from now on."

[16] In October 2021, Yumiri Hanamori, Nao Tōyama, Sayuri Hara, Aki Toyosaki, and Takahashi were announced to be reprising their respective voice roles from the anime series as Nadeshiko, Rin, Chiaki Ōgaki, Aoi Inuyama, and Ena.

[30] A series of "candid photo visuals" that features the daily lives of each of the characters began releasing that year, starting with Nadeshiko and Rin in January,[31] Chiaki and Aoi in February,[32][33] and Ena in March.

[36] Promotional partners for the film included Animate;[37] Lawson;[38] the Japanese credit card company Epos Card;[39] Shimobe Roadside Station, a roadside station in Minobu;[40] the Fujinokuni Camping Car & Outdoor Show, an outdoor event by the Japan Recreational Vehicle Association for campers;[41] the Japanese shopping center Ario via their branch in Hashimoto, Sagamihara;[42] Nissin Foods;[43] Homestar, the home edition of Megastar planetarium projector by Sega;[44] Mori Park Outdoor Village in Akishima;[45] the Japanese streetwear brand Zozotown;[46] Fuji Kyuko;[47] and the Japan Weather Association.

[60] Hinataka of Netorabo praised the film for its "carefully spun" story, "funny and comedic" elements, the production that "looks great on the theater screen", and depiction of a working adult setting.

[67] Writing for Crunchyroll, Alicia Haddick felt the film was "accessible to newcomers and long-term fans alike, with a genuinely touching message about reconnecting with your passions and never losing sight of what you love."

[68] Kim Morrissy of Anime News Network graded the film "B", feeling that it "serves up an extra generous helping of mellow adventures with this two-hour installment, which is great for anyone who wants to see more of the characters, although it might also perhaps be too much of a good thing."

Morrissy praised the "[n]uanced and understated writing and presentation" and how the film explored the responsibilities of being an adult, while criticized the long runtime for a simple plot.