Global Lord: I Can Infinitely Strengthen My Troops

What should we do when the end comes? "Fuck Japan!" What should I do if I become a lord? "Fuck Japan!" What should we do with the system? "Fuck Japan!" ... All the people traveled across the Ark Continent and became the lords who saved the Fifth Era, but there will always be little Baga who has a good life causing trouble, so if you have nothing to do, just go to Japan! Shi Xiaoguang became the elemental lord and possessed the top troops of the demon civilization in the second era! Moreover, the reinforcement system has been turned on, which can improve the soldiers recruited thousands of times! Is it normal for a black iron level to kill a demon? Why does the demon king want to defeat my black iron bodyguard? BOSS? It doesn't exist, you know nothing about power!