The sea of ​​clouds is misty, and the sky is infinite. All living beings, who does not yearn for it? The way of heaven is illusory, and no one can see it. In the world of mortals, who does not want to live forever? The resentful couple of three lives and seven generations, the righteous way and the evil religion for thousands of years. A person, with an ancient sword, how will he face the whole world...