The story took place during the time when Pyrrha became Pyrrha Omega, then Cassandra Alexandra, who already become malfested, managed to controlled the malfested powers and plans to used it in order to save Pyrrha from being lost in the shadow of darkness. Now Cassandra already knew that the Soul Calibur is corrupted and plans to used Patroklos as a pawn in order to kill Pyrrha,then another unexpected chaos coming and turning the world into tragic darkest present day and now it's up to Cassandra who wanted to save the dark present day world from the world of chaos.