Classified

Their real hair color: Classified. Their real birthdays: Classified. Their real names: Classified.
He goes by Nathaniel. She goes by Lily. Both are spies in training. Both have learnt to keep personal information, personal. Both are very good at what they do.
So, when they begin to show up on each others missions, when they finally meet someone whose life is just as secretive as their own, what happens.
Maybe they'll have to learn that their hearts, like the rest of their lives, are Classified.