Investigating the rear of the library in Genshin Impact is among the first tasks players will come across on their journey in Enkanomiya. After diving deep into the area, it takes a while before people finally find remnants of the ancient civilization. The second large building they'll come across turns out to be a library. Players have to first activate a mechanism before they can enter the place. Then, if they walk to the upper floor, players will meet a suspicious scholar called Enjou.