The Vicious Female Supporting Character Doesn't Want to Die Anymore

After her eighteenth birthday party, Elvira was told that the world she lived in was actually a female harem YY novel. And she is just a tool to promote the love between the heroine and her eighteenth boyfriend. Because she was an eyesore to the protagonist, she was burned to ashes by the magic power, and she didn't even survive for three chapters. "Then do I have to stay here as a supporting actress and wait to die?" "Actually, there is a way to survive, host, as long as you continue to commit suicide..." Avila went to commit suicide as the system said, but why did this group of people slowly become wrong... "Your Highness, don't you like shiny things the most? Do you think this ring is beautiful?" "Little Ella, actually you can try to get close to me~" "I hereby swear an oath, as evidenced by my sword, my honor, and my life. I am loyal to the lineage of Grand Duke Valais and will defend His Highness Aesela to the death..." It's so annoying, why are these idiots as difficult to deal with as a dog-skin plaster...