The movie City Hunter, which starred Chan Chan, was based on the Japanese manga City Hunter. The manga told the story of the protagonist Lee Jun's adventure in the city. Li Jun was an agile and quick-witted superhero. He used his skills to protect the safety of the citizens in the city.
Well, in terms of the City Hunter manga and its adaptations, there are often differences in character designs and the pacing of the story. Sometimes, the adaptations might simplify or expand certain plot points for better audience engagement.
The Hunter x Hunter manga is unfortunately not complete. The author has faced various issues that have led to intermittent breaks and an unresolved storyline.