Hakurei ventures into the Cathedral alone, protected by a blade blessed by the previous incarnation of Athena. He tears apart the opposing Specters until he reaches the center of Hades's dark barrier that permeates the castle and hinders the Saints. When he attempts to destroy it with his sword, Hypnos appears, revealing to have intercepted and defeated Hakurei's pupils Shion and Yuzuriha. Will Hakurei be able to take down the foe he has hated since the last Holy War?