Tập 9: Arthur và cuộc chiến với rồng trên đất, biển, trời và bề mặt mặt trăng

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Seeking to settle the score from their last meeting, Arthur challenges Dragon to battle alone. Their fight rages over land, sea, and air. And then, they travel to the surface of the strange moon. In the airless vacuum and extreme cold, Arthur desperately fights back, but then, at last, he collapses. The fate of the world hangs on this battle. Will the Knight King, Arthur, be able to win? (Source: Crunchyroll)