Long ago deep in the Orange Sea, a tribe of warriors called the Totome fought to keep peace in the lands. Every 100 years the top warriors compete to take over as the new leader, or Abeoji. Sai and Katana are two warriors selected to compete. But when they make it to the final round, their hidden relationship is discovered. Their punishment and final challenge to become the leader is to fight each other in a Si Dou- A sword fight to the death.