Ano Hi no Kokoro wo Toraete
Genres: Drama, Sci-Fi
Type: ONA, Episodes: 1
Aired: Oct 23, 2019
Studio: Sunrise
Source: Original
Rating: G - All Ages
Synopsis:
The story is set in a town that preserves nature and its natural attractions using technology. It centers on a protagonist who has drifted apart from his childhood friend, and uses the FlatFormer to reconnect through time and space. 

(Source: ANN)