A modern corporate worker time-travels to become the ancient canon-fodder true daughter Song Anluo. Just as she returns to the Marquise mansion, she is framed by the fake daughter Song Yurou. Little does she know, the Marquise parents and elder brother can all hear her inner voice. Relying on the plot spoilers in her inner voice, the family resolves Song Yurou's conspiracy in advance, tears off her hypocritical mask, and even the biased eldest brother Song Jingheng wakes up to reality. Song Yurou refuses to accept defeat, colluding with her biological father and involving Duke Pei, who plotted the baby swap seventeen years ago. Facing the Pei family's assassination and framing, the Song family uses her inner voice to play along, submitting evidence of embezzlement of military provisions and the baby swap to the Court of Judicial Review, successfully overthrowing the villains, and Song Yurou is expelled from the Marquise family genealogy.