"They are beautiful. They are deadly. They are female soldiers. They are representing the army in that beautiful and popular way, and I think that every soldier is statisfied that they are representing them. This group is dedicated to them. Enjoy the pictures!" Staff of the Main Headquarters of the Females in Uniform Lovers
Someone said that she is the model, while everyone else denied it...
I would say she is flight attendant, but if you are sure she is in military...
Only other JAAF insigna I found looked different from what she has on her shirt. But no hard evidence for or against.