I Have the Detective System

Shen Jiangheng, who originally died in the line of duty, was reborn and returned to the day when he first joined the company as an intern twenty years ago. With a single glance at the unsolved cases that had remained unsolved for more than twenty years, he already knew who the real culprit was. "Oh, I really want a challenge!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.