Sentai Filmworks will release the anime with an English dub on Blu-ray Disc on April 16.
The series is based on Seita Horio's Kokkoku: Moment by Moment manga. Sentai Filmworks describes the story:
https://www.animenewsnetwork.com/news/2019-03-20/kokkoku-anime-english-dub-trailer-streamed/.144774