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Hunting for the strength to avenge his murdered friend, Akira set his sights on reaching the bottom of an ancient labyrinth. There, Akira discovers a huge, talking black cat -- a servant of the Demon King and unexpected ally. After they form a pact to join forces, a magic circle whisks Akira away to the home of his new companion Emilia, the land of the elves. There, unexpected secrets about Emilia's history come into dangerous focus!