I Am the Late Emperor's Sharpest Knife...

The Female Supporting Character Counterattacks, Competes with Others, Is Funny, and Fights in the Palace and at Home.

Want to watch something like "Nonsense, she's not a bad woman!" Book. The female supporting character counterattacks and becomes the heroine. She is reincarnated and tortures the heroine. On the surface, she looks soft and weak, but in fact she is full of scheming, causing the male protagonist to compete with the male protagonist, two male protagonists, and three male protagonists. Everyone has to be her protector.