You are an alchemist. Well, you've been studying and practicing alchemy since you were 6. Against you're family's wishes you had decide to become a state alchemist. Most people didn't know what kind of alchemy you studied but you were okay with that.
When you were younger your older brother had made you commit the unforgivable sin in order to bring back his fiancé. In the process you had lost your brother and your left leg below the knee. But luckily you had gotten automail.
Hoping you can forget your past you head for central and once you get there you take the test. You meet someone from the military after you are done. Colonel Mustang. What kind of relationship will the two of you have? And what will happen between you?