Clara had vanished, leaving no trace to be found nationwide.

Matthew often found himself lost in thought, repeatedly reflecting on the past, only to be left with deep regret.

On his computer, he continuously replayed the surveillance footage capturing Clara's back. This was the only clue left from the day Clara left the hospital.

Clara had deliberately avoided all the cameras, and only this unavoidable moment was captured in a few seconds.

Matthew was at a loss ...