Chenyin Goes to the River Styx

Thousands of years ago, he was the famous Heavenly Sword Lord in the Nine Provinces, but now he is just Yun Wuchen hiding in the abyss of mist. Mountains and rivers changed in a blink of an eye, and he no longer cared about worldly affairs, only cultivating with the grass and trees, pursuing the realm of unity between heaven and man. Until Lin Qingyin, a girl collecting herbs, strayed into the abyss and knocked on his dusty world to save the spiritual beast. She moved him with her pure compassion and was accepted as his disciple. She entered Taoism through music and became the link that reconnected him to the world. However, the former ancestor of the same sect, Xue Ming, has fallen into the devil's path. He is in charge of the Nether Sect and has set up a blood sacrifice array to devour the spiritual veins of the Nine Provinces. When the world is about to fall, Yun Wuchen has to return to the world of mortals, using grass and trees as swords, and once again prove the great truth. This is the ultimate showdown between the way of nature and the bloodthirsty demonic power. A hidden master and his successor face the trial of fate together.