The upcoming anime movie Child of Kamiari Month released a new trailer on August 08, 2020. The film will be directed by Toshinari Shinohe and it will be produced by Liden Films. It was announced that the said film will be released by 2021.
You can watch the trailer here.
Kanna, a 12-year-old girl, has lost her ability to face her hobby of running at the passing of her mother. One day, Kanna is invited on a journey to Izumo by a messenger of God in the form of a rabbit, Shiro, and a young demon boy, Yasha.
Source: Child of Kamiari Month Official Japanese Website