I'm an Emperor in the Wasteland

Lin Yuan swore that he just wanted to watch the ending of the third season of "Glory of the Emperor". As a result, the last episode was stuck when the Emperor opened his eyes, and all the barrage was saying "See you in Season 4". He jumped up from the sofa and yelled, "Screenwriter, you have no heart," and then his vision went dark—— When he opened his eyes again, he was standing on the earth after the nuclear war. Two suns hang in the sky, one white and one red. There is cracked earth under your feet, ruins in the distance, and ruins even further away. The air smelled of radiation and despair. The system told him that this was a world three hundred years in the future, where civilization had returned to zero and mankind had returned to the tribal age. The system also said that he was the chosen "Emperor". As a gift package for newbies, he received: a three-meter-tall blue giant (calling himself a space warrior, named Cassius), a chain sword, and a box of ant bull cans. Cassius knelt down on one knee: "Your Majesty, after ten thousand years, we are finally waiting for you." Lin Yuan: "I said I'm not the emperor, I'm just an unlucky guy who stayed up late watching TV dramas and died suddenly. Do you believe it?" Cassius: "Your Majesty is testing my loyalty again." In this way, Lin Yuan took his "full of loyalty" bodyguards and began his journey to survive in the wasteland. The system told him: Complete tasks to earn experience, and the experience can be used for lottery. You can draw more space warriors, weapons and equipment, and all kinds of weird things through the lottery.