Stone Cold Heart!!!

A normal College girl name Nyllone meets a bad end to her life. She reincarnated as a side character of her favorite story "Stone Cold Heart Inside". Knowing what would happen in the story, she must avoid all the red flags to her death and the terrible end. How will she be able to avoid these situations? What new troubles will she bump into once she changes the story? Will she succeed or be doomed for eternity?