Once Upon A December

When Izuku was a child, he lived in an orphanage with only glances as to what his past was. When he was old enough to leave, he hears of a prince that is rumored to be alive after the killing of his family that took place many years ago. Wanting to leave his hometown and head to Paris where he believes someone is waiting for him, he runs into a certain heterochromia-eyed male who agrees to help him get out of Russia, but only if he agrees to act like the lost prince. What could go wrong?

I do not own reader or any of the characters used in this story. This is an adaptation to the musical Anastasia.