Ignore the journal (or don't). I just want to play the female in one of
1. Two kingdoms are on the verge of war. In desperation, one king promises his daughter in marriage to his bachelor warmongering counterpart. But because he can't bear to give his own child over to such an enemy, he instead sends one of the princess's handmaidens to take her place. He tells the groom that she is the princess, and the girl is expected to play along for the sake of her kingdom. Will the ruse be discovered, and when it does, what will happen?
2. This could be supernatural or fantasy depending. GUY and GIRL are powerful creatures of some sort (elves, fae, sorcerers, etc.) who would normally be at each others' throats. However, there's something bigger than both of them that they must team up to destroy. For an interesting twist, they could both be villains and either the antagonist is also a villain or is a force of good.