The male protagonist: Bingshan is sinister, decisive in killing, vs. The female protagonist: soft on the outside, strong on the inside, and thoughtful. The criminal officer who believes in data and the painter who can channel; the powerful official who is good at calculation and the psychological counselor who is good at attacking the mind. A court painter and a commander of the Imperial Guard were forced to form a "surface couple" due to an unsolved case. As they joined forces to stir up trouble in the court, they went from being happy enemies who tested each other to becoming each other's only soul mates.
"Professional dimensionality reduction strike" type: The female protagonist can be a forensic doctor, an expert in trace science, a doctor of classical literature, etc. Her modern professional knowledge has become a "gold finger" to break the situation in ancient times. The male protagonist can be a bodyguard or commander-in-chief, who is well versed in the ways of officialdom. The two form an interesting cognitive dislocation. This collision of essential abilities is extremely impactful.
