The System Crashed and I Got the Ghost Killing Rules

The system arrives 90 days in advance, and the era of terror begins! Ding dong! It is detected that the host survives the supernatural attack of an A-level knocker and is rewarded with a copy card! Lu Chen looked at the kind old man outside the door, and a question mark appeared on his forehead. Ding dong, it is detected that the host has survived the supernatural attack of the A-level ghost, and the reward is 180 supernatural points! Lu Chen looked at the red-faced girl in white underneath him and fell into deep thought. The supernatural is revived and the evil ghost is coming! The system crashes at the start, and the S-class ghost controller 90 days later is still a freshman. The Devil's Den 90 days later is still just a nightclub and bar! Lu Chen gained the Knocker Ghost ability at the beginning, triggering the killing rule that Knocker will kill, and used the last 90 days to control the ghost crazily! When the era of terror truly arrives, Lu Chen has become a god! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.