- Country: Japan
- Genres: Drama
- Runtime: min
- AKA: Laughing Under the Clouds: Gaiden Part 3 (Japan)
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.