Aros awoke from a slumber in the Blank Space. After a battle against a Dark Keyblade user, he had sacrificed himself to protect everyone after the Keyblade war. He now lay in the Blank Space, Keyblades missing. One day, or what seemed like a day, he came across his one of his old Keyblades, Sleeping Lion. The Keyblade transformed into Two Become One and Oathkeeper, reminding him that he still had a duty as a Master. He searched for a way out of the Blank Space.