I Am Sorry, but the Ending Is Already Messed Up

When I opened my eyes, everything was already over. The game’s heroine was dead, and her fiancé had shut himself away in despair. A disease with no cure was sweeping the country. This was the world after the ending judged “the most terrible, the worst, the most despicable.” I stood in the middle of that world as the heroine’s twin older sister, as the ‘mastermind’ who killed her, the true culprit. “Ah. I’m screwed.” My new life ended before it even began. The heroine’s twin sister, of the bloodline of a beautiful fairy, the last head of a prestigious house. My name was Fay Obelli. All the fancy titles meant nothing. I, “Fay,” was simply the ‘mastermind’ and the ‘real culprit’ who had killed the heroine. The ending had already happened. It couldn’t be undone. So I wanted to keep my mouth shut and live quietly, like a mouse. “s*upid, arrogant, infuriating… did you kill Rene just for this?” Looks like that wasn’t possible. There was already someone who knew the whole truth and was desperate to kill me. He loved the heroine, Rene, and Rene’s stepbrother, Deneb. From now on I had to work out how to run from him. …In a world that loved Rene, how on earth could I, the one who killed Rene, possibly cling to life? ‘Even a busted-ending’s busted character doesn’t want to die, you know.’ Fine. Then first, I’ll run.