In your opinion, which hero has the most charisma in the campaign?

Actually, the wedding was interrupted, and one becomes queen after the coronation, not after the wedding. Nicholas didn't just fail to defeat three demons; he sent the entire huge demon army to Shi'o and died at the hand of Agrail only because Agrail, thanks to his love for Isabel, was probably already half-demon by that point. So, everything is very logical; the only illogical thing is that they removed Ra'ylag from the Tribes of the East.