Rogue System, Forcing Me to Train the Female Ghost at the Beginning

[Campus+hilarious+supernatural+daily+indifferent=? ] In the era of rampant ghosts, Liu Mang awakened the anger system at the beginning. From then on, he started his own journey of subduing ghosts without being a human being! Wandering Ghost: "Just tell me if you want me to reincarnate. Why are you slapping me in the mouth?" Maid Ghost: "(ಥ_ಥ)wuwuwu, this person is a pervert. If you can't beat me, just whip me with a small whip!" Ugly Ghost: "(๑ १д१)He is simply not a human being. Dutemeow scolded me and cried!" Old ghost: "This little kid is so incompetent. He always calls me "Old Biden" and even rides on his horse to poke the bullseye in my butt!" The introduction is too weak, please move to the main text!