Global catastrophe, doomsday is approaching
Wang Cheng accidentally discovered that he had obtained a black technology war system, which could upgrade all things with black technology!
Toy guns can be directly upgraded to real guns
A dagger can be upgraded multiple times into a black-tech high-frequency concussion weapon
The bike can even be upgraded all the way into a high-tech battleship!
The boundless doom shrouds, the old order collapses, and countless creatures flee for their lives in panic
Wang Cheng said: I took off!