Rogers+Ward:Agents of S.H.I.E.L.D

Who knew that Grant Ward has a twin sister?
Or that Steve Rogers has a brother?
What happens when they meet?

She was put through the grueling training of dance and gymnastics by her 'mother'. And some other types of training as well. Her older brother mentally berated her. But she got through it with her brother Grant.

He was the colder brother. Always observing his surroundings and planning out the next move. He and his brother are opposites but they always have each other.