Library

Hey, that friend over there, yes, that's the werewolf, don't leave, squat down on the spot, hold your head, and cooperate with my research... What? You ask me why a researcher holds a knife in his hand? What a knife, it's my research tool! ... I have no intention of being an enemy to you, I just want you to stay and cooperate with my research? What? Disagree? Looking at the research equipment in my hand, I allow you to organize your own language... ... What, who am I, you ask? I am the famous No. 1 Researcher in the universe - Zhong Xian, Ouch, I'm super fierce