Raiga and Fuga, the twin giant successors of the Nishin FÅ«raiken (Dual Gods of Wind and Thunder Fist) style, are the gatekeepers of Cassandra. After years of destroying anyone trying to enter without permission, they decide to quit, but the merciless warden Uighur forces them to continue. Beaten by Kenshiro, they decide to join him to free Cassandra from the yoke of Uighur even at the cost of the life of their brother-at-arms, Mitsu. They break open the giant doors of Cassandra, and Ken finally faces the giant warden, Uighur.