The System Crashes, and I Obtain the Door-Knocker Ghost's Killing Rules

The System arrives ninety days ahead of schedule, and the age of terror begins in full!

Ding! The Host has survived a supernatural attack by an A-Class Knocking Ghost. Reward: one Copy Card!

Lu Chen looks at the kind old man outside his door, a question mark appearing over his head.

Ding! The Host has survived a supernatural attack by an A-Class Look-Back Ghost. Reward: 180 supernatural points!

Lu Chen looks down at the blushing girl in white beneath him and falls into deep thought.

Supernatural forces rise, and evil ghosts descend!

The System crashes at the start. The S-Class ghost tamer of ninety days from now is currently just a college freshman.

The ghost lair of ninety days from now is currently just a nightclub!

From the start, Lu Chen obtains the Knocking Ghost's ability and triggers its killing rule: anyone who answers a knock dies. He uses these last ninety days to frantically harness evil ghosts!

By the time the age of terror truly arrives, Lu Chen has already become a god!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.