Leaving Kagoshima behind, Musashi heads next to Kumamoto, where Udou is — said to be the place where Miyamoto Musashi, founder of the two-sword style, ended his days. But the two-sword style is still alive. Who is Hyoue Furusawa, the old man who defeated Udou? To meet Furusawa, Musashi sets out for a small island floating in Ariake Bay...

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