Chen Mo traveled to the Republic of China, and with the help of the iron-blooded system, he gradually developed from a small force into a warlord. The domestic situation was changing, and various forces were fighting openly and secretly. Chen Mo constantly weighed the pros and cons in this complex environment. The Anti-Japanese War broke out, and Chen Mo led his army to join the anti-Japanese war. From the initial difficult resistance to the gradual growth into an anti-Japanese iron army, he experienced various battles and setbacks.