Yuna, Ryuho and Haruto are transported to an unknown dark place and eventually reach a door, which they touch and are all transported to a world of memories. Yuna is on her hometown with her childhood friend before the war, Ryuho is on his childhood on Palestra along with his then friend the Lynx Saint and Haruto faces his own brother. All three realize the world they are is an illusion created by the darkness on their hearts and are at first hesitant to battle, but manage to overcome the darkness and reach the Core of Darkness.