Shinen kara no Kikan

A mysterious man tells Sora Mukujima in a dream, "I shall wait for you at the edge of the Abyss." Sora's quiet life with his parents is shattered when a towering structure appears, his soldier brother becomes unreachable, and creatures begin attacking. In a moment of crisis, the man from his dream appears. Sora awakens in a strange world known as the "Abyss," as the man had mentioned. Determined to return home and rescue his family, Sora resolves to confront the Abyss, battle its threats, and become stronger.