The Reborn Priestess

In her past life, swapped heiress Aurelia was brutally abused and killed by the corrupt Senator Cassius. Reborn with a thirst for vengeance, she happily steps aside and lets her scheming fake sister, Valeria, marry the monstrous senator instead. Securing the powerful favor of the Imperial Shrine's high priestess, Aurelia exposes the swap plot, reclaims her noble lineage, and becomes a powerful countess betrothed to the crown prince, Maximus, while her abusers meet a tragic, agonizing end.