The protagonists Yang Yu and Ji Wang are a criminal police officer and a forensic doctor.
Yang Yu was born into a noble family. Because of this, she was often kidnapped. Many people also sent money to her. As two people who assisted their colleagues, they had an unknown past behind them.
Ji Wang was born in an orphanage, but due to the corruption of the orphanage, the children could only eat scraps and were often abused. Because everything he experienced as a child formed his weird character, in the eyes of normal people, he was just weird, but it was not that simple. He was illegal, and he was also a killer. But before he became a killer, he was just a kidnapper.
Purpose: Resist crime