- The film serves as a sequel to the 2019 anime film Rascal Does Not Dream of a Dreaming Girl.
- It is based on the eighth volume of the light novel series Rascal Does Not Dream written by Hajime Kamoshida and illustrated by Keeji Mizoguchi.
- The film was initially announced during the Aniplex Online Fest event in September 2022.
- Rascal Does Not Dream of a Sister Venturing Out was released in Japan on June 23, 2023.