Dual Systems at the Start, How Do You Ask Me to Keep a Low Profile?

[Dual system + funny + easy + crushing + nerves] "Brothers, run, this Qin Chuan is crazy", "You are a demon once, you will be a demon all your life", "I am too lazy to say it, and you don't deserve to listen", "I, Qin Chuan, just want to kill all the demons and zombies in this world", "Why should I reason with you", "I have seen many geniuses, but they all call me a genius"