Tetsuya Wakano
2021曇天に笑う＜外伝＞～桜華、天望の架橋～
Tetsuya Wakano
Yūki Kaji, Yuichi Nakamura
The three brothers discover that the human experiment banned after destroying the "Orochi", is still going on to secretly revive the evil snake. They also find out that some ex-members of the Yamainu (the Japanese military unit formed to kill the snake) are behind this conspiracy. The brothers fight together again in a battle against the military.
Donten: Laughing Under the Clouds - Gaiden: Chapter 3 - Conspiracy of the Military
曇天に笑う＜外伝＞～宿命、双頭の風魔～
Tetsuya Wakano
Takahiro Sakurai, Koji Yusa
Fuma ninja clan is a secret ninja tribe that is waiting for the "Orochi" (gigantic snake) to resurrect for generations. Shirasu and his twin brother Ichiu grew up in this viscous environment and this tells how they become the leaders of the clan.
Donten: Laughing Under the Clouds - Gaiden: Chapter 2 - The Tragedy of Fuuma Ninja Tribe
曇天に笑う＜外伝＞～決別、犲の誓い～
Tetsuya Wakano
Yuichi Nakamura, Yūki Kaji
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.
Donten: Laughing Under the Clouds - Gaiden: Chapter 1 - One Year After the Battle
