[Looping Corridor: Marks of Time] Chen Mo wakes in excruciating pain to find himself inside a bizarre corridor that stretches endlessly onward. A cold voice recites the rules in his mind: find the key, open the door, and enter the next level, or be "erased" when the countdown reaches zero. A battered teddy bear leaves behind cryptic clues, while the metallic sound of something dragging through the darkness draws closer with every step. His only "senior" informs him numbly: "This is my third loop." The path to escape is full of peril, but more terrifying than death is an endless cycle of rebirth. You must wake up, you must move forward, until you uncover the corridor's ultimate secret...or become utterly lost within it.