The world is in chaos with demons and evil spirits running rampant.
This is a world where even cultivators need evidence.
Gu Changan traveled through the Yongxian Dynasty and was admitted to the Xingxian Academy. He wanted to practice steadily, but unexpectedly awakened the most precious treasure [Book of Records]. If you solve strange cases, you can get rewards, deduce the truth, trace the cause and effect, and even get a glimpse of the deceased's last scene before his death.
The case of freshmen falling from the building, the paper man crying at night case, the ghost in the mirror case, the marriage of the river god, the empty city case...
Behind each of the weird and bizarre cases, there are hidden secrets in the depths of demons, people's hearts, and the Immortal Dynasty.
When all the clues came together, Gu Changan discovered that the evil god who was suppressed three thousand years ago had never really died. And those mysterious cases that shocked Kyushu were just the beginning of a shocking conspiracy.
My name is Gu Changan.
The long night is coming, and the evil spirits must be punished.
This time, what I want to investigate is the entire world.
