Prologue

"I always wished I had a dad," she admitted quietly, staring up at the stars. "I guess I should have been careful what I wished for. Adam and my mom would still be alive if we had never met John Winchester." "I'm... sorry." Deep blue eyes met hers and a large, warm hand closed around her smaller one. "For everything you've been through."

(Future Castiel/OFC. Unbreakable is also a sister!fic, Beth is Adam's twin and Sam and Dean's younger half sister. P.S. I don't own anything from Supernatural, I only own the Original Characters that will make appearances throughout the story.)