The Beeping Doesn't Stop

After Cheng Sheng woke up in the hospital, he discovered that he had a mysterious "detective system" As long as he accepts the task, he can easily find clues and solve various cases. From then on, he gradually emerges in the city. However, as the number of cases increased, he began to notice abnormalities From time to time, there is a strange "beep" sound in my ears, like some kind of machinery operating. Until one day, the system released a task: Please find the missing person When he traced it all the way, he found that The missing person turned out to be himself if everything is false So what is the real reality?