On the night of his eighteenth birthday, high school sophomore Chen Yi did not wait for blessings from his family, but instead waited for twelve melancholy bells.
After the bell, the world faded and collapsed before his eyes.
He fell into a long-abandoned campus—a replica world of a strange game. He and fifteen other trapped people had to find the key to the principal's office within three hours before they could leave alive.
But what about that soaked schoolgirl who hunts by sound?
Why did those gray-black crystals falling from the deceased's body allow him to see the bloody past?
When his companions were blindly sent to death under the leadership of a veteran, Chen Yi chose to believe his own observation: the monsters here have traces to follow, and the rules here can be broken.
However, what he didn't know was that the moment the clock struck midnight was the beginning of the real nightmare...
