Lang Ming, a young man living in Xiaoyanggang, dreams of becoming a knight-errant, but he is blind and can only rely on swindling to survive in the market. Until one day, a demon attacks Xiaoyanggang, and his mother, who depended on him for life, suddenly disappears. Lang Ming is forced to embark on a journey to find the truth. As troubles continue, the ancient mythical beast Taotie appears, putting the world in danger. The legendary knights also appear before him, and Lang Ming embarks on an adventure that will change his life...