Gedounin

A Gedounin (外道人) is a half-Gedoushu that can freely exist in both realms and assume a human form. The only Gedounin to be seen is Juzo Fuwa, who entered the Sanzu River to cheat death when he contracted a fatal illness, completely discarding the goodness in his heart to become a Gedounin. However, unlike other Gedounin who die out in a few years, Juzo endured over the centuries and thus is condemned with an insatiable urge to find an ideal opponent, a fellow samurai who strays from the teachings of bushidō, to clash blades with.