HEYYO, FireGoose here! 
I'm an artist and writer who has bright hopes for the future and is a very voracious reader. So this app is perfect for me! I have many series up my sweater sleeve which I hope to share with y'all. All will be in American -English; but I do know some Russian and Middle American Spainish.is

(WARNING)
 I'm a part of the CountryHumans Community though I don't do NSFW, and my version is way different. If I get around to it, you may read how. 
 The countries aren't the usual style and look human, and they have different clothing. Most have different personalities too. The only thing I really kept was some ships. 
The four main countries are:
America - Ame (male)
Russia - Ruska (female)
Germany - Ger (male)
Nekopan - Neko (female) --- she is the female equivalent of Japan and is less traditional. More details will be in the books.
Some ships I know of and may be in the series' (main and not):
NekAme -- Nekopan+ America: main
RusAme--  Russia+ America: hinted
RusGer -- Russia+ Germany :hinted
GerPol -- Germany+ Poland-Polla (female): main
RusMex-- Russia+Mexico- Mexi (male):hinted
RusFin-- Russia+ Finland-Finn (male): EH
FinStonia-- Finland+ Estonia -Esta (female): not main
UkraiNada -- Ukraine- Ukie (female)+ Canada-Nada (male): not main
KorPan-- South Korea- Koree (female)+ Japan-Pan (male): not main
ChiPan-- China -Chia (female)+ Japan: hinted
Chietnam -- China + Vietnam -Namie (male): not main
And obviously
PhilAmePan -- Philippines -Philli (female)+ America+Japan:  HINTED
 (PhilIndoMalay is just a friendship--so far)
 
Some other characters you might see often are (OCs):
Thing (male)
Ti-Ti  (female)
Jane Doe - JD (female)
(ThinTiDoe is a love triangle on Thing LOL)
Furry (female)
Gamer (male)
Memer (male) 
      They're details will be in the books for safety reasons-- so I won't find them elsewhere.
        
                                    Hope you enjoy!