Fifty years ago, Longcheng traversed through time, a lone iron-blooded army, holding high the banner of Earth civilization, facing the terrifying tide of countless alien races. Fifty years later, Meng Chao is reborn, discovering that he can become stronger by making contributions. "Beep, beep, you just helped an old lady cross the road, promoting social harmony, contribution points +1." "Beep, beep, in your hand-to-hand combat with the monster queen, you demonstrated the fighting spirit of Longcheng's warriors, contribution points +10000." "The war god comprehended the strongest fighting technique under your guidance, and the overall combat power of Longcheng soared, contribution points +100000." "Under your persuasion and education, the Night Witch has awakened and cried, promising never to be naughty again, contribution points +250000." "You convinced countless alien gods and demons with your virtue, and they are willing to contribute to Earth civilization...