A thousand years ago the Realm In-Between was ruled by the 1st Dark Empire ruled by Emperor Abrosia Dark, born in the Dark Realm, he and his Keyblade Warriors possessed an element known as the Black Blood. He wielded the Kingdom Key D, however that change, when he came upon the Ultimate Dark Keyblade: the Z-Blade, ironically at the same time the Keyblade Grand Master in the Realm of Light found the X-Blade which caused negotiations to go straight to hell when Keyblade Wielders from both sides immediatly raced to the World which was later named: the Keyblae Graveyard, both sides were attempting to protect Kingdom Hearts from their enemies resulting in a Large Battle that forever dyed the land Twilight. After that massive battle, both sides looked for the quickest chance for peaceful negotia