Describe Your Feeling When Being Reincarnated as Your Husband’s Mistress

After suddenly dying from a seizure, Adrienne Trovica, the sole Grand Duchess of the Rhonta Empire, wakes up in the body of Countess Bleiah Acacia, whose face looks exactly like her own. As it turns out, Bleiah is no ordinary woman. She was the mistress of Adrienne's husband, Noevian Trovica. Before Adrienne's death, Noevian had been a loving husband, but now Adrienne wants to break free of his mistress in order to get revenge on him. One by one, Adrienne puts her plan into action so that she can find her way in her new life and avenge Noevian.