I'm in CF, I Meet Lan at the Beginning, and the System Wakes Up.

Lu Chen traveled to the world of CF and encountered "Lan" at the beginning and fell into a life and death crisis. Before Lu Chen could figure out what exactly happened. A large group of biochemical ghosts had already broken through the defense point and rushed into the human body to massacre wildly. Seeing this, Lan has fallen into despair and is ready to kill both the biochemical ghost and the grenade. But at this moment. Lu Chen suddenly obtained the "CF Mall" system. At the beginning, you get the former troll artifact—m1216. "Biological ghosts? I prefer to call them Xiaohong!" After saying that, Lu Chen picked up a black shotgun and started killing! Ps: The introduction is weak, please read the text. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.