On the night of the meteor rain, my roommate turned into a zombie in front of me.
I killed him, and then there was a voice in my head - "The shelter system has been bound."
During the day, the zombies are as slow as wooden men. It is my time to harvest crystals. At night, they go crazy, and I have to guard this building.
Kill zombies and give crystals. The crystals can evolve, and evolution can awaken powers. There are body forging techniques, technology blueprints, weapons and ammunition in the system mall. I started in a dorm room and turned the entire building into an apocalyptic fortress.
Until that day, a man with a blue crystal embedded in his chest knocked on my door: "Are you also the one selected by the system?"
Three days later, a voice claiming to be a "manager" sounded in everyone's mind - "Congratulations on surviving the first day. I will come to visit you in three days."
The system gives a red warning: the probability of survival is less than 5%.
