C469 Private Detective

Zhao Qian swore in his heart that he would definitely find the person who killed Zi Su.

The people Zi Su met that day, the places she went, the things she did and so on, all had to look for clues.

Only now did Zhao Qian realize that he didn't know Zi Su very well. For example, who Zi Su often came into contact with, where she frequently went to have fun after going out