Lu Yunhuai: "Hello, Shi Yichen,
Or was it a classmate? Officer Shi...? ".
Shi Yichen glanced at him and looked at him quietly as he looked at him.
"I'm not good".
... Sorry, I have no obligation to cooperate.
The dust-laden old case stirs up trouble again. In the fog of the murder, the two search for the truth and develop feelings for each other.
Purpose: Work together to solve unsolved cases, break through obstacles, reunite, and stay together until the end