Donten: Laughing Under the Clouds - Gaiden: Chapter 1 - One Year After the Battle
( 曇天に笑う<外伝>~決別、犲の誓い~ )

No tagline for this movie
One year has passed after the great battle against the Orochi (gigantic snake). Tenka Kumo had been paralyzed from the final battle and he took part of the government’s human experiment before the battle. Tenka withdrew himself from society but his younger brothers Soramaru and Chutaro find out the secret past about their older brother.
Animation
Action
Adventure
Fantasy