The warm-hearted Sunshine Gong and the tough-tongued Tsundere Gong were childhood sweethearts until they graduated from college and started working. They were involved in a criminal activity and investigated to find out that their father's car accident many years ago was not an accident. Based on the clues, the entangled rights and wrongs of the father's generation can be pieced together to restore. The protagonists care about each other during the investigation of the case, and recognize and face their own emotions. There are straight men flirting with each other, and there are also sweet doting.
Intention: Rely on each other and face life together.