Delivery rider Xu Linchuan receives an order that cannot be canceled.
The delivery address is a nonexistent floor in a sealed-off old building.
The customer is another version of himself, covered in blood.
The other man shoves half of an access ring and a gun without sights into his hands, managing only one sentence:
“They killed every version of me in that world. Now it’s your turn.”
The next second, Xu Linchuan is sent into a doomsday city where gravity keeps reversing.
