Ten years ago, Ling Juebi, the best swordsman in the world, died mysteriously on the top of Mount Huashan. His only son, Ling Yun, carried half of the wordless sword manual and became the laughingstock of the world. Ten years later, Shen Mo, a young man whose life experience was a mystery, stepped into the world with a rusty iron sword. He wanted to repay his teacher's kindness and also to pursue a dusty truth. When the sleeping ancient sword wakes up, and when the huge conspiracy shrouding the martial arts world is slowly revealed, who can bring light to the nineteen continents with one sword? In this chaos, who can compete with him to conquer the sky?