War of Change.

It's a truth that in love and war,
World's collide and hearts get broken,
I want to live like I know I'm dying,
Take up my cross, not be afraid.

Margaret "Maggie" Stark is nothing like her brother. Yes they share a last name and their father's genius intellect; but their beliefs are completely different. When the Superhuman Registration Act is brought to the light, she immediately is against it while her brother is all for it; this causes a riff between the two, once close, siblings. After a fight, she packs up her stuff from Tony's and leaves; arriving on Steve Rogers' front steps.

With all that's going on. Who has her loyalty; her flesh and blood or a man who she grew up idolizing?