The Villainess Is Not Alone

I’ve reincarnated in a reverse harem novel as the supporting antagonist, Quinn Lister, that will be executed after harassing and poisoning the female lead. I tried to change my destiny, but one day… "So, you’re an impostor as well, huh." The male lead, Crown Prince Julius Alexander Clovis, had also reincarnated even before me! *** English is not my first language. I am sorry for any spelling or grammatical mistakes. Also, I’m a doctor, so I don’t know much about politics:( But I’ll try my best so cheer me up!