Alright! I'm going to attempt to write a Cardverse Hetalia fanfic, this will be chapter stories just to make more interesting. Before you start reading, I just want you to understand who is in what kingdom. I have added an extra Kingdom which is consisted of the Nordics even though they aren't an official kingdom or a kingdom that does exist.
Below is a list of Kingdoms and relationships, so you won't get confused about what's going on through out the story.
~Kingdoms~
Kingdom of Power, Spades: Alfred Jones (King), Arthurt Kirkland (Queen), Wang Yao (Knave), Matthew Williams (Knight)
Kingdom of Love, Hearts: Ludwig (King), Kiku Honda (Queen), Felicano Vargas (Knave), Lovino Vargas (Knight)
Kingdom of Weath, Diamonds: Francis Bonnefoy (King), Erika Vogel (Queen), Basch Zwingli (Knave), Antonio Carriedo (Knight)
Kingdom of Luck, Clovers: Ivan Braginsky (King), Elizabeta Hedervry (Queen), Roderich Edelstein (Knave), Natalia Arlovskaya (Knight)
Kingdom of Cooperation, Aces: Matthias Densen (King), Lukas Bondevik (Queen), Tino V in m inen (Knave), Berwald Oxenstierna (Knight), Emil Steilsson.
~Non-Kingdoms~
Jokers: Gilbert Beilschmidt, Peter Kirkland
~ Relationships ~
Alfred and Arthur: Married for love
Ludwig and Kiku: Arrange Marriage
Francis and Erika: Arrange Marriage
Ivan and Elizabeta: Arrange Marriage.
Erika and Basch: Like Family/Lovers
Ludwig and Feliciano: Friend/Lovers
Yao and Ivan: Secret Lovers
Antonio and Lovino: Secret Lovers
Matthias and Lukas: Married for love
Berwald and Tino: Lovers
Now that you know all five kingdoms and the relationships. I will write the first chapter soon so stay tuned.