Dai Xuan is an ordinary sophomore.
Together with a group of buddies, he signs up for a tour called [Explore the Mysterious Old House]. After a long journey, Dai Xuan is surprised to discover that the supposedly mysterious old house is actually the one his grandfather sold after he died.
At first, everyone thinks it's just a game of chance. But after they enter the old house, its eerie door locks by itself, trapping all ten of them inside the empty building...
Premise:
