King of Pesticides: Would You Like a Gem of Knowledge for Me?

Wei Feng, a high school student from the Dragon Kingdom, accidentally got the system Knowledge gem? Buy buy buy! Sima Yi's big move? Just show off and run away! System, I don't want the pain mask, you take it away! With Flash, I can't just go wherever I want. Roommate: "Brother Wei, I feel so weak. You won't do anything to me, right?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.