Siheyuan: Taking the Neighbors to War for National Destiny

The National Destiny War has begun. The chosen contestants are transported to another world, where they make contracts with the natives and wage war on behalf of their countries. In the first round of the National Destiny War, the Dragon Nation suffered a crushing defeat, losing four out of five matches to neighboring Sakura Nation. But Bai Chen, a transmigrator, discovers that the so-called other world is actually made up of TV shows and movies from his previous life. When he is chosen for the second round of the National Destiny War, he is thrilled. But when he is transported to the familiar world of Love in the Courtyard, he is completely dumbfounded. How can ordinary people stand up to ninjas, swordsmen, samurai, and monsters? Fortunately, at the crucial moment, he awakens the Billionfold Enhancement System. It can enhance the talents and abilities of contracted characters. What, our opponent is Naruto Uzumaki? My billionfold-enhanced Qin Huairu cries so hard that Naruto gives away everything he owns. What, our opponent is Sadako? My billionfold-enhanced Jia Zhangshi comes out carrying her son. There are even stronger enemies? No problem. My venerable moral sage Yi Zhonghai, the all-calculating Yan Bugui, and the invincible God of War He Yuzhu... have long been itching for a fight.