The film is directed by Tatsuyuki Nagai and written by Mari Okada, with Masayoshi Tanaka designing the characters and serving as chief animation director.

The trio under the creative team Super Peace Busters previously worked together on Toradora!, Anohana: The Flower We Saw That Day, and The Anthem of the Heart.

However, the girls' parents are killed in a car accident and Akane changes her plans, choosing to stay in Chichibu to raise Aoi.

Thirteen years later, Aoi is an aspiring bassist who plans to move to Tokyo after high school, while Akane works for the city hall.

Michinko is planning to hold a music festival to boost the city's tourism, and the main performer is the famous enka singer Dankichi Nitobe.

Her Blue Sky was announced by the Super Peace Busters creative team on March 21, 2019, consisting of director Tatsuyuki Nagai, screenwriter Mari Okada, and character designer Masayoshi Tanaka.

[citation needed] Her Blue Sky in its opening weekend ranked #4 in the Japanese box office, earning ¥68.5 million in 3 days.