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One is a former royal family member, a descendant of a famous family, who is responsible for the great cause of restoring the country and overthrows the entire country; the other is a son-in-law who comes from the mountains and has a humble background and is regarded as a waste by ordinary people. He counterattacks and becomes the supreme one in the world by his own power; whose world belongs to him? But these two peerless heroes have an extraordinary relationship...