I Promise | CS AU

Emma Swan was a guarded 17 year-old who never had the chance to feel loved, to feel wanted. She had grown up in foster homes all her life, jumping from one to another with no sense of stability or the feeling of a home. She recently had been taken in by what seems to be just another foster family out of the millions.
But there was something different about this one.
Little did she know, that something was actually someone named Killian Jones, her soon to be foster brother.