
Shiroyasha Koutan is a completely unpredictable, absolutely frantic ten minutes, as funny and entertaining as Gintama ever was positively up to standard. As the characters bid farewell, they reveal the true purpose of the special to build up the momentum for the One Piece special that follows! Before long the supporting cast show up and havoc ensues, then - time's up! It's over.

Once the trailer is over, we find ourselves in the movie threatre with the main trio, who begin to eliminate the fourth wall in true Gintama fashion by commenting on their own trailer.

The first four minutes are beautifully re-animated backstory sequences from the main series, spliced with additional footage here and there, that have been pieced together to create a trailer for a fictional Gintama movie. In essence, Shiroyasha Koutan is simply a build up a supporting act before the main event. The end result was completely unexpected, but so in Gintama's nature and an absolute treat for fans. With only a little information and the runtime to go on, many fans assumed the special would be ten full minutes of action - perhaps a full sequence - set during the Joui war, possibly covering sections of main character Gintoki's past.

Sunrise recognised the demand for a Gintama movie and so took the concept of a teaser, expanded it a little and made Shiroyasha Koutan for the 2008 Jump Anime Tour event.
