The Greatest Bookstore: The Owner Only Wants to Lie Low

Bai Fan transmigrated, and he wasn't surprised at all. It was just a matter of sleeping somewhere else. The only problem was that the guy in his head called the System was really annoying, constantly assigning him missions. Bai Fan stuck to one principle: lie down... This was a magical bookstore. Legend had it that the owner was a retired ancient powerhouse, skilled in all kinds of magic and crafts. Its books covered everything from ancient times to the present, with every secret art and forbidden technique, along with books on artifact forging and talisman crafting... Bai Fan had only one thing to say to the System: Get me a middle school math book. I'm going to take the graduate school entrance exam!