Soubi takes Ritsuka to find Septimal Moon, and Kio tags along for the ride. Ritsuka is unsettled and disturbed to discover that the Seimei Kio knew is very different from Ritsuka's own memories of his beloved older brother... Or are they so different after all? When Ritsuka confronts him about it, Soubi reveals a link that may finally start to reconcile Ritsuka's fragmented view of the young man he always admired. But when they arrive at the Seven Voices Academy, through which they must pass in order to reach Septimal Moon, only Soubi and Ritsuka are allowed to enter, and when they do, Ritsuka meets some familiar faces...