The moment there was a power outage in the library, Chen Mo kissed Lin Wanxing in front of the whole school, just to force out the person hiding in the dark. Ten years ago, Lin Wanxing's mother disappeared at the station, and the only clue was a subcontracted ticket. Chen Mo took the old diary to trace the truth, but found that Su Nian, Zhou Ye, Lao Zhou and even security guard Zhao Tiezhu all had secrets around him. When all the evidence was laid out in public at the station, the real murderer turned out to be the person whom everyone least expected.
