One day, Mu Ci, the lord of the Demon Realm, picked up a dragon egg from the battlefield. After it hatched, the little Tyrannosaurus rex ran rampant in the Demon Realm, and no one dared to control it. Until one day, Mu Ci looked at his apprentice with more and more strange eyes. With strong love in his eyes, he turned around and ran away, shouting, "Master, don't come here!"