Saving Lu Li from the abyss wasn't the wisdom of Lu Li, but the ringing of the phone.
Old Pique from the laundry called, telling Lu Li he could come over to start the new Sanity Value test.
The location was still the laundry.
This time there might be an investigator present, the Exorcist Realm was not friendly to spirits, so Lu Li left Anna behind and went alone.
Anna asked Lu Li to either buy or rent some books on his way back, and Lu Li agreed.
Books can comfort the soul, if one day the world becomes difficult to live in, when barely surviving in some cave or island, books can be of great use.
Lu Li didn't have paranoid delusions, but being prepared for anything was always good.
At the beginning of Sailor Street stood a bookstore, owned by an elderly man. Like most people thought, the bookstore business was quiet. Reading? That was something for the rich and nobility, who only needed to ensure their offspring could have a stable job on a big ship just like them.