One year has passed after the great battle against the "Orochi" (gigantic snake). Tenka had been paralyzed from the final battle and he took part in the government's human experiment before the battle. Tenka withdrew himself from society, but his younger brothers, Soramaru and Chuutaro, find out the secret past about their older brother.
(Summary Courtesy of MyAnimeList.net)
50-minute film released on December 2, 2017.
Animated by Wit Studio.
Licensed by Funimation.
[edit] The
Laughing Under the Clouds franchise: