Sorry this isn't the first chapter but just to make sure that you reader aren't confused which person is which country.
Treecano- y/n
Treecano 2p- August
America- Alfred🇺🇸
Canada- Matthew🇨🇦
England- Arthur🇬🇧
France- Francis🇫🇷
Germany- Ludwig🇩🇪
Prussia- Gilbert
Russia- Ivan🇷🇺
North Italy/ Italy- Feliciano🇮🇹
South Italy/ Romano- Lovino🇮🇹
China- Yao🇨🇳
Japan- Kiku🇯🇵