Animation de Tsutaeru: Hibakusha kara no Tegami
English name: Letters from Hibakusha
Genres: Drama
Type: ONA, Episodes: 9
Aired: Aug 4, 2017 to Sep 18, 2019
Source: Other
Rating: G - All Ages
Synopsis:
NHK undertakes a project to visualize written stories of the A-bomb victims through animation. The experience notes of the A-bomb victims which will be the base for the animation are ones sent to NHK's annual reciting, a program to read and share their experience, which have been running as long as 9 years now. A total of 2,200 notes have been sent to us so far.

(Source: Official YouTube channel)