Rebellion, Offer a Reward, and Then Become the Demon Lord

"So, you are actually a human?" "No, I'm not a person... Ah! I'm a person, no! I'm the system!" "But you are obviously a human being." "Don't think about these things all day long, hurry up and earn rebellion points, come and exchange items with me, and improve your strength as soon as possible to reach the top." "Well... Okay, I've decided!" "???" "Master Chen Gui, thank you for your continued guidance!" "Wait, I said I am the system." "My strength is still lacking now. When I become the number one devil in the world, I will spray paint your image on the Lingxiao Palace, Master."