
The film will feature a plot scripted by series creator Tsutomu Satō, and will premiere in Japan on June 17, 2017. The development of the movie was revealed in the 19th light novel volume released in March 2016.

She has escaped an experimental lab at the Naval base and the group decides to save her and the others still beholden to the cruel CAD experiments. After only a small moment of peace, they find a young girl named Kokoa. The two go with their friends to a villa owned by Shizuku Kitayama's family on the Ogasawara Island archipelago. Tatsuya and Miyuki have finished their first year at first magic high school and are on their spring break.

In the story, the seasons have changed and it will soon be the second spring.
