The Experimental Building's layout wasn't very complicated. There was only one straight corridor, with all kinds of laboratories on either side and a Freight Elevator at the end.
The Student Couple didn't know why there was a Freight Elevator in the Experimental Building. They didn't think much about it. The tourists behind them were chasing after them like mad, and there was nowhere else to go at the end of the corridor. The only way to escape was to take the elevator.
"Stop!" Big Ghost and Little Ghost shouted. The Student Couple grew even more frightened. They hadn't done anything to provoke the two of them; they'd barely exchanged a few words. Yet the pair seemed ready to swallow them whole.
The corridor was a straight line, with nothing to block the view. They would be spotted even if they hid in one of the laboratories. The Student Couple dashed to the end of the corridor and frantically pressed the elevator button.
"Come on, open!"
Panicking, the Male Student completely missed the sign beside the elevator: "Freight Access. Tourists are prohibited!"
He pressed the button again and again, and the silver-gray elevator doors slowly opened.
"Let's go to another floor and hide for a while! These tourists aren't normal!"
There were four buttons in the elevator, corresponding to the first through fourth basement levels. The first three numbers were normal colors, but the number for the fourth basement level had been smeared red with blood.
The Male Student helped his girlfriend into the elevator and casually pressed a button.
The doors slowly closed, and the footsteps in the corridor drew closer.
"I heard a long time ago that the Haunted House Owner was insane, and often had employees pose as tourists. I can't believe we were unlucky enough to run