I Became the Tyrant's Dishonest Adviser

A customer service employee one moment, then an adviser to the tyrannical emperor, Cardan Zeon, the next. Our heroine was suddenly transmigrated into the body of Duchess Erina Valois, a side character who dies a tragic death at the emperor’s hands in a novel she was reading the night before. So despite all the confusion and chaos, one thing is for...