Of course, the following is a retouching of the original copy, making its emotions more delicate and the characters more three-dimensional, while enhancing the tension and attraction of the story: --- **Jang Choon-dong** is a traffic policeman, but he always dreams of becoming a criminal policeman in the serious crime team.He has a calm personality and meticulous mind, and his heart is burning with persistence in justice.This time, he was selected by his superiors to carry out a dangerous and difficult task - going deep into the gang forces and sneaking into a complicated criminal organization. At the same time, the capable general **Lee Joong-dae**, the gang leader **Kwang-seob**, also quietly launched a reverse infiltration.He disguised himself as he successfully joined the police force and became one of them.In order to win the trust of his superiors, he was diligent and loyal on the surface, but secretly took every step, just to find out the "thorn in the eyes" placed by the police inside them - Choon-dong. A contest between cats and mice quietly kicked off in the gray area at the junction of black and white.The two of them carry their own missions and deal with lies and disguise. Whoever sees through each other first will be able to control life and death. --- If you have more background settings or character information, I can also further deepen the polish to make the whole story more immersive and emotionally impactful.