Is what it says in the title

Lt. Yumiko Mustang. Younger sister of Colonel Roy Mustang. Two siblings who are drasticly different, but that's how they get along so well. One day, Roy has Yumiko partner up with Edward Elric. She doesn't like any guy Romanticly........Right? Then why the hell is she falling for the blond pipsqueak? Follow Yumiko on her journey with Ed, on the hunt for the Pilosopher's Stone. Disclaimer: i dont own FMA or the characters. Just the plot and My OC