Do you still remember Nanshan College? That abandoned school has been sending out bursts of piano sounds at midnight recently. If the brave listen carefully, they seem to hear a hint of crying, which is creepy...

No one knows what happened back then. All we know is that the school has been in turmoil since a girl named Xiaoyu died mysteriously.

You received the invitation letter and returned to school again. The quiet and serious classroom, the neat and old desks and podiums, and the scattered chalks in front of the blackboard... and the eerie and silent corridor outside the classroom seemed very strange. What will happen next? No one knows...