After Entering the Palace as a Seductive Consort, the Regent Went Mad with Regret

[The second male lead takes the crown + a beauty who brings ruin to the realm] [Scheming emperor + gorgeous favored consort] She was a beauty who brought ruin to the realm, charming the emperor above and the powerful ministers below, but never the all-powerful regent. Everyone knew she had once been all but guaranteed to become the regent's consort, only for a woman he brought back to steal him away. After that, she entered the palace and became the most beloved consort in the imperial harem. The emperor cherished and adored her, even willing to give her his realm just to see her smile. But he came to regret it. On the night of the palace coup, he held a sword to her throat and demanded, “Why are you unwilling to charm me, of all people? Have you really fallen in love with him?” Her jade fingers, painted with red polish, lightly brushed the blade. Her voice was casual as she replied, “Yes.”