Usually, cells have surveillance.
Chun believes this special cell should be no exception. It wouldn't be good for the Ten Lords behind the scenes to see him learning from the Divine Artifact Book right in front of the surveillance.
Chun stood up and went to the prison rules wall to study the rules, only to discover there really was one that said "No lying under the bed."
Holy Shit! Oh well, let's just read it as is.
He flipped through the first chapter, but there was no reaction at all.
Chun suddenly remembered he had another book that Maria gave him, the "Comprehensive Guide to Treasure Identification." When he flipped through the first chapter, he immediately learned Basic Treasure Identification Technique. She also mentioned she wasn't interested in human history or art, but by combining this with archeology and this technique, it could birth a new profession, the Erudite Scholar! (Note: Chapter 217)
