All members of the Lu family were convicted of being evil spirits, and he was the only one left in exile.
A pen sharpened by the bones of a dead man, fed with essence and blood for three years, finally spoke - the green-faced ghost made him invisible, the paper man made his appearance, and the skinned man gave him blood eyes.
But the more he checked, the more frightened he became: the "ironclad evidence of demon communication" that wiped out all his families back then had exactly the same handwriting as this fragment.
This time, it was his turn to take notes.