Chapter 405, "The Person Saved Casually Turns Out to Be a Diplomat?!", is the clearest early answer because it turns Hua Country's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The medical student was completely dumbfounded.

Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....
Chapter 405 is the strongest chapter-level answer because it starts from The medical student was completely dumbfounded. and follows through on His wife quickly explained the reason to him, then the man excitedly stood....