I felt sleepy and dozed off during class, what! ? When I woke up, I suddenly arrived in a place that was the same as before but with weird things everywhere... "Welcome to the dark world!" Life is in danger here at any time, and once you die, you can't go back. Here, you must be careful not only of the "people" around you, but also of the people around you...
Purpose: To reveal the sinister nature of the human heart