Gun Gun transmigrates into the first Iron-Eating Beast in the Primordial World and gets bound to the Slacker System: lie around to increase his magical power, roll over to strengthen his primordial spirit. Houtu forces him to refine blood essence and practice the Wu scriptures, but after three hundred years, he has not even made a start. The blood essence of the Ancestral Witches reeks so badly he can't bring himself to taste it. Crouching in a corner, he mutters, "How about... you let me have a taste of your milk?" Houtu's face darkens.