Can't You Enjoy Killing Demons for the Rest of Your Life?

Once he traveled through time, Gu Yunshen became the prince of the Dayang Dynasty. I wanted to lie down and be a second-generation ancestor who bullies men and dominates women. But he accidentally discovered that this was an era where demons were rampant, and he accidentally activated the system of killing demons and becoming stronger. [Kill the bear demon and gain 1000 experience points] [Kill the bull demon and get 1000 experience points] From then on, the Zhou Dynasty lost a dandy royal family who bullied men and dominated women. There is another peerless master of slaying demons. At the same time, it also received numerous favors. Beautiful maid: Your Highness, you are too tired from slaying demons. Please let me rub your shoulders. Qian Hu in the Army: Your Highness, I have always admired your name and want to get acquainted with you. Monster Princess: Gu Yunshen, it is a win-win situation for you and me to cultivate together. King Zhou: What? Yesterday my son was in the sixth grade, but today he is in the fourth grade? Demon Emperor: Your Majesty, don't kill me. I will never come back to the world for a hundred years! ! ! ! Many years later, Gu Yunshen stood in the Jinluan Palace and chopped the dragon chair into pieces with one knife. I heard that someone wants to cut down the vassal clan? Who?