Japan: Perverted yet serious, Nyapon’s older brother, uses polite language.
Nyapon: Energetic yuri otaku.
Japanese Empire: Stern tsundere guy, kind to Palau.
Riku: Laid-back tsukkomi, Japanese Empire’s younger brother.
Umi: Grumpy tsundere, Japanese Empire’s younger brother but often at odds with him, frequently bickering.
Sora: Airheaded and scheming, Japanese Empire’s younger brother, the one who fans the flames of arguments between Umi and Japanese Empire.
Edo: Hides his face behind paper, overly protective, male.
Germany: Calm and hardworking, male.
Nazi: Proud and rough-tongued, Germany’s older brother.
German Emperor: Calm and silent tsundere, Germany’s older brother.
Prussia: Strictly overprotective, Germany’s older brother.
Italy: Naturally cheerful, pasta and pizza are everything, male.
Italian King: Slightly calculating and airy, Italy’s older brother.
Roman Empire: Elegant and a flirt, Italy’s older brother.
Russia: Cool and fond of drinking, male.
Serbia: Cheerful and sociable, Russia’s close friend, male.
Belarus: Quiet but secretly yandere, Russia’s younger sister.
Ukraine: Serious and sensible, Russia’s younger brother.
Kazakhstan: Russia’s younger brother, gentle and kind.
Cuba: Cheerful and belligerent, Soviet Union’s younger brother.
Soviet Union: Taciturn and unfriendly alcoholic, Russia’s older brother; hates the Russian Emperor and often quarrels with him.
Russian Emperor: Airy and carefree, Russia’s older brother; at odds with the Soviet Union and often argues with them.
Denmark: Eldest son of a Nordic family, cheerful and loves beer.
Sweden: Second son of a Nordic family, big-brother type and hardworking.
Norway: Third son of a Nordic family, nature-loving and laid-back.
Finland: Fourth son of a Nordic family, quiet and slightly shy.
Iceland: Fifth son (youngest) of a Nordic family, cold and sharp-tongued.
Spain: Cheerful sleepyhead, male.
Portugal: Mature and always smiling, has a shady connection with Spain, male.
Estonia: Gentle and quiet, female.
Lithuania: Cheerful and passionate, female, gets along well with Estonia and Latvia.
Latvia: Serious and resilient, female.
Singapore: Smart and cerebral, male.
Austria: Gets along well with Germany, gentle musician.
Switzerland: Mediator, serious, male.
Turkey: Tsundere, good caretaker, male.
Palau: Fond of the Japanese Empire, cheerful shota.
Nauru: Good friends with Palau, cheerful shota.
Niue: Gentle loli.
Vatican City: Church nun, petite, female.
Monaco: Proud, easygoing, petite male.
Brazil: Sociable soccer youth.
Romania: Silent vampire, male.
Moldova: Scared sensible person, Romania’s younger brother.
America: Cheerful extrovert.
Canada: Natural with an axe, America’s younger brother.
United Kingdom: Self-proclaimed gentleman and provocateur, America’s older brother.
France: At loggerheads with Britain, skilled artist, female.
Belgium: Chocolate lover and refined, female.
China: Loves Chinese culture, speaks fake Chinese.
South Korea: North Korea’s older brother, internet user.
North Korea: For some reason carries missiles, taciturn and tsundere.

Everyone is handsome and beautiful.