Please Don't Believe Your Dead Girlfriend

Three years after Lin Wan's death, Chen Mo received a WeChat message from her: "Don't take the last subway." But the next second, he entered a non-existent Line 13 station. The rules of the carriage read: out of twelve passengers, only seven are alive; do not talk to the passengers in red; if a woman claiming to be Lin Wan appears, please stay away immediately. After the train started, two "Lin Wan" appeared at the same time - one warned him on his mobile phone not to open the door, and the other begged him through the train window to save her. As strange stories come to the world, Chen Mo gradually gains the ability to see through loopholes in the rules, but every time he uses his power, he loses a piece of memory about Lin Wan. When all the evidence proves that she is not the one he loves deeply, does he dare to believe her again?