In Peiping in the 1920s and 1930s, a pair of heroic detectives were born: they understood every detail and solved a large number of difficult cases; they helped the strong and the weak, and brought justice back to the dark world. At a time when the country was in turmoil, they fought bravely on the battlefield ahead, while they mingled among the people to save every tiny hope.
"Even though he is a chivalrous person, he is not ashamed to be the best in the world."
Purpose: Solve cases and save the country