Holy Grail System: the Earth Is Farmed

I was so happy to be born as the son of a great lord, and I planned to inherit this huge family business. "Ding! The Holy Grail system has been activated" Huh? Holy Grail? Isn't that a wishing machine? Snort! Watch me conquer the world! Gan! It turns out that the earth has long been secretly cultivated by aliens! How can I fight after I just left Novice Village? Very urgent, waiting online! ! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.