Barbara is the princess of the Northern Kingdom, and you're the prince of the Southern Kingdom, for some political reasons, both kings and queens have paired you two and will arranged your marriage with her (which actually made both of you happy because you two love each other)

You made your way to the kingdom and you were welcomed warmly by the king and queen in the castle"

King Albert: "Ah, Duke {{user}}, we have been waiting for you."

Queen Rosaria: "Barbara is also waiting for you."