Expecting Royal Twins!

All Izzy ever wanted was to be a mechanic and one day the crew chief of a racetrack pit crew. Oh, and to find the key to a box she was left by her uncle. Eventually she finds the key, but she also finds out she is a princess who is already married to a prince, to Niko. Niko is willing to give her the key but in return he wants to get an annulment. Izzy never had any real interest in getting married so she's more than happy to go along with it. She travels to the place of their birth, Vernonia. It has been suffering ever since her disappearance long ago. No one wants Izzy and Niko's marriage to end, and after being with him neither does Izzy. But how does Niko feel about Izzy, a mechanic who isn't afraid to get oil on herself?