Xu Hao, an extreme survival game enthusiast who graduated from 985 with a double major in chemistry and economics, accidentally traveled to the war-torn troubled times of the Republic of China, bound to the "Troubled Times Survival Game System", and started a crazy journey of survival and hegemony. Unarmed at the beginning, he relied on modern knowledge to make his own Molotov cocktails, played economic games to monopolize the food market, and raised a team of orphans and refugees to deal with warlords from all sides in a ruthless style. He ambushed the warlords' troops, destroyed the enemy's lair, and instigated warlords to fight. He gradually unified the five counties in northern Hebei and established a stable territory. Faced with Marshal Wu's army of tens of thousands, the temptation of the Nanjing government, and the threat of Japanese co-optation, Xu Hao adhered to the national bottom line, skillfully used systematic skills and modern tactics, and repeatedly made comebacks in desperate situations. While building territory and developing industry, he also established an air force and arsenal. He vowed to become the master in these troubled times, protect the people of a place, and write his own legend.