Demon-Suppressing Library, I Became the Source of Terror Resurgence

Gu Cheng traveled to a parallel world and became the director of a library. At the same time, the task issued by the system was to let him stay in this library every day and live a boring life. This day. Gu Cheng took advantage of the system upgrade period to go out. But when he came back, he was dumbfounded. The library was in a mess and all the books were opened. Only then did Gu Cheng realize that there were countless strange letters in the library. So far. The world is about to be in chaos, and mankind around the world has once again entered an era of alert. Wall castle! Special Bureau! Guard tower! Human secrets that have been hidden for hundreds of years are gradually revealed, and Gu Cheng also discovers the identity of his predecessor... The introduction has overflowed, please move to the main text... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.