알고 보니 우리 언니가 먼치킨
31 Episodes
Cecilia Fairchild learns she's the Fake Heiress, maliciously swapped at birth. System predicts at twenty-two she'll be replaced by Real Heiress and die tragically. Fairchild family loves and protects her. Real Heiress Vivian Fairchild returns, not driving Cecilia out. Villain Harrison Crawford plots to control Fairchild family. Vivian joins family to expose his conspiracy. Cecilia breaks free from system, makes comeback, shatters prophecy, finds fulfilling life.