Su Chen was woken up by a piercing siren.
"Warning! The global apocalypse is coming! The zombie virus breaks out! All survivors are asked to find their own shelter!"
The world outside the window has completely changed. The streets were filled with running crowds, screams and roars mixed together, and the air was filled with a strong smell of blood. Several zombies with ulcers all over their bodies and bulging eyeballs were lying on the cars on the side of the road, eating crazily.
Before Su Chen had time to digest this information, a cold electronic sound suddenly sounded in his mind.
"Ding - Congratulations to the host for activating the [All-round Academic Sign-in System]!"
"The system has detected the coming doomsday and has automatically adjusted to doomsday survival mode.
