A master knife expert joins the royal court for the ruler's annual knife skills competition, bringing urgent news of an approaching invasion. His arrival reignites a past rivalry with a deaf and blind elderly man who resurfaces to confront him. The expert demonstrates his skill in a series of intense fights, ultimately winning the competition by mastering his opponent's unique techniques. This newfound ability sets him on a dangerous path, where he meets a mysterious woman disguised as a man. Together, they face enemies and challenges while slowly uncovering her true identity and the reasons behind her deception.
