»Kingdom AU A young knight named Aichi has met princess Kourin when they were young, they became friends for a short time and Aichi made a promise to become a full fledged knight to the princess. Years later they met again and both are tied into an arranged marriage... UNEXPECTEDLY. What kind of comedic and cheesy romantic situations would these two have? And will their marriage happen if there is someone who will try to take the princess away?! //Cardfight!! Vanguard belongs to Bushiroad//