For the celestial realms of Subaru, the end has come. New enemies emerge and all looks bleak. In Kurai, Cahya struggles to regain her place among Kage and the beings of the Realm of Darkness. In the Light Realm, Tariq attempts to save the desperate people of Hikari. All three realms are in shambles as a new threat descends. If they are to have any hope of overcoming a ruthless evil, the Seven Sisters and the Kings of both the Light and Dark must come together. The two realms must join to save themselves and to save the Mirror Realm, or all is lost.