OVAs bundled with the 15-17th volumes of the Mushibugyou manga.

The film's story centers on Musashi Miyamoto, one of the most famous swordsmen in Japanese history. He pioneered the Hyouhou Niten Ichi-ryuu style of two-sword fighting and wrote The Book of Five Rings, a book that has been compared to Sun Tzu's The Art of War for its insight on tactics and strategy.

A new Getter robot is piloted by three youth as they combat the evil terrors that plague the world.